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《java类中的serialVersionUID是什么作用》的评论

类中影响Serialization进程的特征,两边的操作使用的类版本不同,但它们的 serialVersionUID 必须是一样的。它是用来识别两边的类是否兼容的,两边不同时不应该继续还原状态,而是应该停止下来,因为有人把事情搞错了。如果你的类没有实现 java.io.Serializable 或 java.io.Externalizable,这个字段则没有意义。如果你没听说过 Java Serialization (序列化,有人书翻译成串行化),那去找些 serialization 介绍看看,下面说的第2段类结构变化时是中级水平的,理解 Java 的一些细节才能理解,多数情况下人们只提到第一种情况(类的结构没有变化时),也只需要第一种情况。当Serialization两端(比如Socket两端)使用一个类的不同版本时,我们必须提供 serialVersionUID,它可以用JDK自带的 serialver 命令行来计算:private static final long serialVersionUID = xxxx ;如果类中出现了下面两个方法,那么将会被用到,否则使用默认的实现:private void readObject(ObjectInputStream) throws IOException,ClassNotFoundException;private void writeObject(ObjectOutputStream)throws IOException;记住这里出现的方法和字段都是 private.新版本中仅增加了字段或方法而没有改变旧版本中已有的东西时,我们只要保证两个版本中的 serialVersionUID 是一样的就行了.具体样例可以看 JDK 源码中的像 ArrayList 这些类的代码的 readObject 和 writeObject 方法。类的结构有些变化时,新版本对旧版本中某些东西进行了删减时, Field 的变化我们需要在readObject和writeObject方法中进行处理ObjectOutputStream.PutField 类可达到这个目的只是保证两个版本中的 serialVersionUID 一致是行不通的类中必需两个常量:private static final long serialVersionUID;private static final ObjectStreamField[] serialPersistentFields下面样例是当客户端和服务端使用的类的版本不同并且类的结构也改变了,比如:12345678910111213 对方使用的类 Entry 是:public class Entry12 ... { private String name, email; private static final long serialVersionUID = 12L;}现在我们改变了类的设计了:public class Entry12 ... { private EntryInternal basic; private static final long serialVersionUID = 12L; private class EntryInternal { private String name, email; }}/* 这是一段代码片段,我们假设新版本的类 name & email 两个字段进行了修改 * (这里我们放到一个内部类EntryInternal 中),而旧版本中直接属于这个类. * * 请注意这里的字段和方法的签名, 它们都是 private 的或者是常量. */public class Entry12 implements Serializable { private EntryInternal pair = new EntryInternal(); /* 这是必要的,因为版本不同 */ private static final long serialVersionUID = 12L; ** 这也是必要的,否则写 putFields 时会抛出异常. * This field will be used by {@link #writeObject(ObjectOutputStream)}, * if this field is missing, follwing exception will be threw when invoke * {@link java.io.ObjectOutputStream.PutField#put(String,)} : * an exception ‘java.lang.IllegalArgumentException: No such object field" will be threw. */ private static final ObjectStreamField[] serialPersistentFields = new ObjectStreamField[] { new ObjectStreamField("name" , String.class),// new ObjectStreamField("email" , String.class),// }; /* 我们在这里不是直接写出字段,而把要写出的字段包装起来, 我们按需交换字段,而不是直接读写pair 这个字段. */ private void readObject(ObjectInputStream input) throws IOException, ClassNotFoundException { ObjectInputStream.GetField getFields = input.readFields(); /* 请注意:使用 Serializable 进行交换时不使用构造方法,所以这时 pair 还未初始化. */ pair = new EntryInternal(); pair.name = (String) getFields.get("name", null); pair.email = (String) getFields.get("email", null); } /* 写出时跟读入时一样 */ private void writeObject(ObjectOutputStream output) throws IOException { ObjectOutputStream.PutField putFields = output.putFields(); putFields.put("name", pair == null ? null : pair.name); putFields.put("email", pair == null ? null : pair.email); output.writeFields(); } ….. }

java 序列化怎么标记为不可序列化的字段?

java序列化中如果要标记为不可序列化的字段,可以使用关键字:tranisant修饰。Java的serialization提供了一种持久化对象实例的机制。当持久化对象时,可能有一个特殊的对象数据成员,我们不想用serialization机制来保存它。为了在一个特定对象的一个域上关闭serialization,可以在这个域前加上关键字transient。transient是Java语言的关键字,用来表示一个域不是该对象串行化的一部分。当一个对象被串行化的时候,transient型变量的值不包括在串行化的表示中,然而非transient型的变量是被包括进去的。

关于java序列化的问题

at weblogic.servlet.internal.session.SessionData.getAttribute(SessionDat

java 中的序列化是什么意思?有什么好处

楼主您好序列化就是用特定的流将对象持久化(将一个对象的属性写到内存,硬盘文件或者其他什么地方)的一个过程,用到的不多,好处?也没什么吧,就是你需要保存这个对象的时候用

求JAY-Z《GLORY》中文歌词。

虽然总是有话想说 却怎么也说不出口 直至遇见你的双眼 每次都温柔地将我包围 你就在我身边 每次梦想交融 绽放耀眼光芒 你轻轻的微笑 是如此欢乐 如此温柔 GIORY GIORY YOU"RE MY SHINE 因为有你 我的泪水全都化为勇气 让我能坚持自己的脚步 走向那美梦成真的地方 未来将会变成怎样 你是否依然在身边? 与你向隅的那条街道 今天也依旧人来人往 始终能够坚信 珍惜的事物不会改变 哪怕相隔万水千山 也能够心心相印 甘苦与共 GIORY GIORY YOU"RE MY SHINE 因为有你 寂寞长夜也能给我勇气 渴望你掌心的温暖 请永远紧握我不放 其实就算是现在 你依然光芒耀眼 有你的陪伴 是我最大的骄傲 沮丧失落之时 也能向前迈开脚步 有你为我照亮前方 无论天边的流云 或是拂面的微风 因为有你 全都带给我勇气 渴望你掌心的温暖 请永远紧握我不放 GIORY GIORY YOU"RE MY SHINE 因为有你 无论何时我能够拥有梦想 梦想变得坚强 梦想与你分享 总有一天能够实现附日文歌词:itsu demo hanashitakatta hanbun mo ienakatta いつでも话したかった 半分も言えなかった au tabi sonna watashi o tsutsumikomu hitomi ni aeta 会うたびそんな私を 包み込む瞳に逢えた soba ni iru yo yume wa tsutaeau tabi kagayaku yo そばにいるよ 梦は伝え合うたび辉くよ sotto kureta egao ga totemo ureshikatta yasashikatta そっとくれた笑颜がとても嬉しかった 优しかった GLORY GLORY YOU"RE MY SHINE kono namida mo GLORY GLORY YOU"RE MY SHINE この涙も kimi ga iru kara yuuki ni kawaru 君がいるから 勇気に変わる akiramenaide aruite yuku 谛めないで 歩いて行く negai kanau basho e 愿い叶う场所へ mirai wa doushiteru darou kimi wa mada soba ni iru no 未来はどうしてるだろう 君はまだそばにいるの futari ga deatta machi wa kyou mo mata ugokitsuzukeru 二人が出逢った街は 今日もまた动き続ける shinjirareru itsumo daiji na mono wa kawaranai 信じられる いつも大事なものは変わらない tooku hanareru toki mo kokoro musubiaeru waraiaeru 远く离れる时も 心结び合える 笑い合える GLORY GLORY YOU"RE MY SHINE samishii yoru mo GLORY GLORY YOU"RE MY SHINE さみしい夜も kimi ga iru kara yuuki ni kawaru 君がいるから 勇気に変わる kono tenohira ni aru nukumori この掌にある温もり zutto hanasanaide ずっと离さないで honto wa ima mo mabushisugiru ほんとは今も眩し过ぎる kimi ga iru koto hokori ni omou 君がいること夸りに思う kujiketa toki mo mae o aruite 挫けた时も前を歩いて michi o terasu you ni 道を照らすように nagareru kumo mo soyogu kaze mo 流れる云も そよぐ风も kimi ga iru kara yuuki ni kawaru 君がいるから 勇気に変わる kono tenohira ni aru nukumori この掌にある温もり zutto hanasanaide ずっと离さないで GLORY GLORY YOU"RE MY SHINE donna toki mo GLORY GLORY YOU"RE MY SHINE どんな时も kimi ga iru kara yume wo mirareru 君がいるから 梦を见られる tsuyoku naritai wakachiaitai 强くなりたい 分かち合いたい kitto tadoritsukeru きっと たどり着ける

求JAY-Z《GLORY》中文歌词。

the most amazing feeling I feel 多么惊喜的感觉啊Words can"t describe the feeling for real 言语都难以形容这真实感觉Baby I paint the sky blue 宝贝我为你画下蓝蓝的天空My greatest creation was you, you 我最大的创造就是你!Glory 荣耀 Ooooh Glory 哦 荣耀啊False alarms and false starts (ugh) 错误的报道是错误的开始All made better by the sound of your heart (yeah) 你心跳的声音让一切变的美好All the pain of the last time 最后的疼痛I prayed so hard it was the last time 最后的努力祈祷Your mamma said that you danced for her 你妈妈说你在为她跳舞Did you wiggle your hands for her? 你在向她挥动你的小手吗?Glory, Glory, Glory, Sorry 荣耀啊 荣耀啊 荣耀啊 哦不好意思Everything that I prayed for 我祈祷一切God"s gift, I wish I would"ve prayed more 上帝的礼物 我希望我会更多的祈祷God makes no mistakes, I made a few 我努力让上帝不再犯错Rough sledding here and there, but I made it through 我解决掉这儿那儿的困难的工作I wreak havoc on the world 我身心疲惫get ready for part 2 开始第二阶段A younger, smarter, faster me 年轻 聪明 什么都超过我So a pinch of Hov, a whole glass of Béy 你夹在我们中间 你妈妈心里都是你[Hook]Glory 荣耀啊The most amazing feeling I feel 多么惊喜的感觉啊Words can"t describe what I"m feeling for real 言语都难以形容这真实感觉Baby I paint the sky blue 宝贝我为你画下蓝蓝的天空My greatest creation was you 我最大的创造就是你![Jay-Z - Verse 2]Your grand pop died, a nigga fell yeh 你爷爷这个黑鬼已经死了Then he died of liver failure 他死了他这个失败者Deep down he was a good man 内心深处他是个好人God damn, I can"t deliver failure 见鬼去吧,我不能表现失败Bad ass Lil Hov 去它的2 years old, shopping on Savile Row 2岁,在萨维尔街逛街Wicked ass lil B 有点小邪恶的屁股像小的碧昂斯Hard not to spoil you rotten looking like little me 难以不溺爱超像小时候我的你The most beautifulest thing in this world 你是世界上最美妙的的事物Daddy"s little girl 爸爸的小女孩You don"t yet know what swag is 你还不需要知道什么是掠夺But you was made in Paris 但是你原本是要出生在巴黎的And mama woke up the next day and shot her album package 你妈妈第二天醒来去发行新专辑Last time the miscarriage was so tragic 结果最后却不幸流产了We was afraid you disappeared 我们非常担心你也会消失But nah, baby you magic (voilà) 但是!你是魔法奇迹So there you have it, shit happens 你拥有魔力,就这样它妈的发生了(激动)Make sure the plane you on is bigger than your carry on baggage确定了飞机,你比你的行李还大Everybody goes through stuff 每个人小心的绕过Life is a gift love, open it up 生命就是一个爱的礼物,打开它吧You"re a child of destiny 你是命中注定的孩子You"re the child of my destiny 你是我命中注定的孩子You"re my child with the child from Destiny"s Child 你是我的孩子注定就是我的孩子That"s a hell of a recipe 去它的秘方Glory, Glory, Glory, Sorry 荣耀啊 荣耀啊 荣耀啊 哦不好意思 Glory uh yeah 荣耀啊 哦也the most amazing feeling I feel 多么惊喜的感觉啊Words can"t describe the feeling for real 言语都难以形容这真实感觉Baby I paint the sky blue 宝贝我为你画下蓝蓝的天空My greatest creation was you 我最大的创造就是你! Blue Ivy Carter(jay-z&Beyonce刚出生女儿)的哭声……

java说明书中generation在这句话中的理解

java程序的运行包括执行程序加载和链接class, 机器码的生成,程序的动态优化(比方说垃圾回收),和实际执行。

帮我翻译下jason mraz 的plane的歌词

crystalplaneohmylove起飞的时候很困难但还是努力的冲向天空editbyrayallen带着从不曾有的勇敢crystalplaneohmylove飞起来就坠入云中感觉象是迷了路有些忐忑有些不安也许总觉得相识得太晚所以总担心这段路太短ohcrystalplane给我安慰不到终点你不能换乘别的航班也许总觉得相识得太晚所以总担心这段路太短ohcrystalplane给我答案从此以后每个起点终点我都会陪你一站又一站crystalplaneohmylovecrystalplaneohmylove起飞的时候很困难但还是努力的冲向天空带着从不曾有的勇敢crystalplaneohmylove飞起来就坠入云中感觉象是迷了路有些忐忑有些不安所以总担心这段路太短ohcrystalplane给我安慰不到终点你不能换乘别的航班也许总觉得相识得太晚所以总担心这段路太短ohcrystalplane给我答案从此以后每个起点终点我都会陪你一站又一站也许总觉得相识得太晚也许总觉得相识得太晚所以总担心这段路太短ohcrystalplane给我安慰不到终点你不能换乘别的航班也许总觉得相识得太晚所以总担心这段路太短ohcrystalplane给我答案从此以后每个起点终点我都会陪你一站又一站我都会陪你一站又一站

帮我翻译下jason mraz 的plane的歌词

crystal plane oh my love起飞的时候很困难但还是努力的冲向天空edit by ray allen带着从不曾有的勇敢crystal plane oh my love飞起来就坠入云中感觉象是迷了路有些忐忑有些不安也许总觉得相识得太晚所以总担心这段路太短oh crystal plane 给我安慰不到终点你不能换乘别的航班也许总觉得相识得太晚所以总担心这段路太短oh crystal plane 给我答案从此以后每个起点终点我都会陪你一站又一站crystal plane oh my lovecrystal plane oh my love起飞的时候很困难但还是努力的冲向天空带着从不曾有的勇敢crystal plane oh my love飞起来就坠入云中感觉象是迷了路有些忐忑有些不安所以总担心这段路太短oh crystal plane 给我安慰不到终点你不能换乘别的航班也许总觉得相识得太晚所以总担心这段路太短oh crystal plane 给我答案从此以后每个起点终点我都会陪你一站又一站也许总觉得相识得太晚也许总觉得相识得太晚所以总担心这段路太短oh crystal plane 给我安慰不到终点你不能换乘别的航班也许总觉得相识得太晚所以总担心这段路太短oh crystal plane 给我答案从此以后每个起点终点我都会陪你一站又一站 我都会陪你一站又一站

求Michael Jackson独唱We are the world歌词

<We Are The World (Demo)>Michael JacksonThere is a timeWhen we should hear a certain call"cause the world, it seems it"s written in these lines"cause there"s a chance for takin"In leading our own livesIt seems we need nothing at allI used to feelI should give away my heartAnd it shows that we are needed in thereThen I read the headlinesAnd it said that got in thereAnd it showed that we are - - - in thereWe are the worldWe are the childrenWe are the one to make a brighter daySo let"s start givin"There"s a chance we"re takin"We"re takin all our livesIt"s true we"re make it a brighter day just you and meGiven your heartAnd you will see that someone cares"Cause you know that they can"t feed them allThen I read the papersAnd it said that you and IAnd it shows the - - - when we work hardWe are the worldWe are the childrenWe are the one to make a brighter daySo let"s start givin"There"s a chance we"re takin"We"re takin all our lifesIt"s true we"re make it a brighter day just you and meNow there"s a time when we must love at allAnd it seem the life, - - - make love at allBut - - - - -And I love you more and moreIt seem you and I will make a new dayWe are the world(The world!)We are the children(Are the children!)We are the ones to make a brighter daySo let"s start givin"(Let"s start givin"!)There"s a chance we"re takin"We"re takin all our livesIt"s true we"re make it a brighter day just you and meWe are the world(Are the world!)We are the children(Are the children!)We are the one to make a brighter daySo let"s start givin"(So let"s start givin"!)There"s a chance we"re takin"(Takin"!)We"re takin all our livesIt"s true we"re make it a brighter day just you and meWe are the world(Sharon!)We are the children(Shalingen!)We are the one to make a brighter day(Sharon!)So let"s start givin"("Cause that"s what we"re bein!)There"s a chance we"re takin"We"re takin all our livesIt"s true we"re make it a brighter day just you and me(Com"on! Yeah!)We are the world(Sharon!)We are the children(Shalingen!)We are the one to make a brighter day(Sharon!)So let"s start givin"("Cause that"s what we"re bein!)There"s a chance we"re takin"We"re takin all our livesIt"s true we"re make it a brighter day just you and me(Oooooooh Yeah!)We are the world(Sharon!)We are the children(Shalingen!)We are the one to make a brighter day(Sharon!)So let"s start givin"("Cause that"s what we"re bein!)There"s a chance we"re takin"We"re takin all our livesIt"s true we"re make it a brighter day just you and me

Rebecca St. James的《God》 歌词

歌曲名:God歌手:Rebecca St. James专辑:Greatest Hitsartist:tori amos歌词整理:wfrf!God sometimesyou just don"t come throughGod sometimesyou just don"t come throughDo you need a woman to look after youGod sometimesyou just don"t come throughYou make pretty daisiespretty daisiesLove I gotta findwhat you"re doing about thingsHere a few witches burningGets a little toasty hereI gotta find why you always gowhen the wind blowsGod sometimesyou just don"t come throughDo you need a woman to look after youGod sometimesyou just don"t come thruoghTell me you"re crazymaybe then I"ll understandYou got your 9 ironin the back seatJust in caseHeard you"re gone south wellBabe you love your new 4 wheelI gotta findwhy you always gowhen the wind blowsWill you even tell herif you decide to make the sky fallWill you even tell herif you decide to make the skyGod sometimesyou just odn"t come throughGod sometimesyou just don"t come throughDo you need a woman to look after youGod sometimesyou just don"t come throughDo you need a woman to look after youGod sometimesyou just don"t come throughendhttp://music.baidu.com/song/2782974

求 Inna Modja 的《trouble maker》 的歌词及伴奏

你有邮箱吗?我给你发过去

GO term Definition (Oryza sativa Japonica)

*Note: Numbers in brackets represent total terms. Definition: A biological process represents a specific objective that the organism is genetically programmed to achieve. Biological processes are often described by their outcome or ending state, e.g., the biological process of cell division results in the creation of two daughter cells (a divided cell) from a single parent cell. A biological process is accomplished by a particular set of molecular functions carried out by specific gene products (or macromolecular complexes), often in a highly regulated manner and in a particular temporal sequence. Definition: A location, relative to cellular compartments and structures, occupied by a macromolecular machine when it carries out a molecular function. There are two ways in which the gene ontology describes locations of gene products: (1) relative to cellular structures (e.g., cytoplasmic side of plasma membrane) or compartments (e.g., mitochondrion), and (2) the stable macromolecular complexes of which they are parts (e.g., the ribosome). Definition: A molecular process that can be carried out by the action of a single macromolecular machine, usually via direct physical interactions with other molecular entities. Function in this sense denotes an action, or activity, that a gene product (or a complex) performs. These actions are described from two distinct but related perspectives: (1) biochemical activity, and (2) role as a component in a larger system/process. 1. antioxidant activity (124) Definition: Inhibition of the reactions brought about by dioxygen (O 2 ) or peroxides. Usually the antioxidant is effective because it can itself be more easily oxidized than the substance protected. The term is often applied to components that can trap free radicals, thereby breaking the chain reaction that normally leads to extensive biological damage. 6. molecular carrier activity (44) Definition: Directly binding to a specific ion or molecule and delivering it either to an acceptor molecule or to a specific location. 7. molecular function regulator (402) Definition: A molecular function that modulates the activity of a gene product or complex. Examples include enzyme regulators and channel regulators. 8. molecular transducer activity (139) Definition:A compound molecular function in which an effector function is controlled by one or more regulatory components. 9. negative regulation of molecular function (142) Definition: Any process that stops or reduces the rate or extent of a molecular function, an elemental biological activity occurring at the molecular level, such as catalysis or binding. 10. positive regulation of molecular function (91) Definition: Any process that activates or increases the rate or extent of a molecular function, an elemental biological activity occurring at the molecular level, such as catalysis or binding. 11. protein folding chaperone (27) Definition: Binding to a protein or a protein-containing complex to assist the protein folding process. 12. protein tag (33) Definition: A molecular function exhibited by a protein that is covalently attached (AKA tagged or conjugated) to another protein where it acts as a marker, recognized by the cellular apparatus to target the tagged protein for some cellular process such as modification, sequestration, transport or degradation. 13. regulation of molecular function (445) Definition: Any process that modulates the frequency, rate or extent of a molecular function, an elemental biological activity occurring at the molecular level, such as catalysis or binding. 14. phosphorelay sensor kinase activity (4) Definition: Catalysis of the phosphorylation of a histidine residue in response to detection of an extracellular signal such as a chemical ligand or change in environment, to initiate a change in cell state or activity. The two-component sensor is a histidine kinase that autophosphorylates a histidine residue in its active site. The phosphate is then transferred to an aspartate residue in a downstream response regulator, to trigger a response. 15. structural molecule activity (251) Definition: The action of a molecule that contributes to the structural integrity of a complex or its assembly within or outside a cell. 16. transcription regulator activity (560) Definition: A molecular function that controls the rate, timing and/or magnitude of gene transcription. The function of transcriptional regulators is to modulate gene expression at the transcription step so that they are expressed in the right cell at the right time and in the right amount throughout the life of the cell and the organism. Genes are transcriptional units, and include bacterial operons. 17. translation regulator activity (82) Definition: Any molecular function involved in the initiation, activation, perpetuation, repression or termination of polypeptide synthesis at the ribosome. 18. transporter activity (718) Definition: Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells.

什么是javaw

没听说过。是不是你写错了呀?

icepack计算中rja是什么意思

这是指结到空气的热阻,在热仿真中由于误差比较大,一般不适用。都是用芯片的Rjb和Rjc双热阻建立模型仿真

亲们 谁有michael jackson keep the faith michael带时间的标准歌词 有的话复制一下给我吧 谢谢了哈

[00:13.17]If you call out loud [00:15.65]Will it get inside [00:19.76]Through the heart of your surrender [00:25.33]To your alibis [00:26.51]And you can say the words [00:29.05]Like you understand [00:32.30]But, the power"s in believing [00:35.36]So give yourself a chance [00:38.69]"Cause you can [00:39.97]Climb the highest mountain [00:43.08]Swim the deepest sea, hee, [00:46.55]All you need is the will to want it [00:50.10]And uhh, little self-esteem [00:53.73]So keep the faith [00:57.34]Don"t let nobody turn you "round [01:00.58]You gotta know when [01:03.11]It"s good to go [01:05.18]To get your dreams [01:07.07]Up off the ground [01:08.26]Keep the faith, baby, yea [01:10.62]Because it"s just [01:12.32]A matter of time [01:14.17]Before your confidence [01:15.76]Will win out [01:17.76]Believe in yourself [01:19.55]No matter what it"s gon" take [01:21.16]You can be a winner [01:22.68]But you got to keep the faith [01:25.86]Gon" keep it brother [01:28.36]You got it [01:30.47]And when you think of trust [01:33.98]Does it lead you home [01:37.25]To a place that you [01:40.49]Only dream of [01:43.58]When you"re all alone [01:47.73]And you can go by feel [01:48.38]"Stead of circumstance [01:51.18]But the power"s in believing [01:54.27]So give yourself a chance [01:56.82]I know that you can [01:58.66]Sail across the water [02:01.80]Float across the sky, high [02:05.26]Any road that you take [02:07.82]Will get you there [02:09.15]If you only try [02:12.18]So keep the faith, ow [02:15.55]Don"t let nobody [02:18.04]Take you down, brother[02:20.12]Just keep your eyes [02:22.65]On the prize [02:24.68]And your feet [02:25.82]Flat on the ground [02:26.42]Keep the faith, baby, yea [02:27.58]Because it"s just [02:30.23]A matter of time [02:32.54]Before your confidence [02:34.81]Will win out [02:37.02]I told my brother how to [02:39.87]Do the thing right [02:40.52]Lift up your head and show [02:41.94]The world you got pride [02:43.56]Go for what you want [02:45.18]Don"t let "em get in your way [02:46.88]You can be better [02:47.99]But you got to keep the faith [02:50.54]You got it [02:52.98]I know that keepin" the faith [02:57.36]Means never givin" up on love [03:02.94]But the power that love has [03:06.77]To make it right [03:09.13]Makes it [03:10.82]Makes it right [03:12.84]Keep the faith [03:15.94]Don"t let nobody turn you "round brother [03:20.78]You got to know [03:21.78]When it"s good to go [03:23.53]To get your dreams up [03:25.44]Off the ground [03:26.38]Keep the faith [03:27.90]Baby, yea [03:29.75]Because it"s just a matter of time [03:33.64]Before your confidence [03:34.86]Will win out [03:36.91]Better stand up and act like [03:39.53]You wanna do right [03:40.62]Don"t play the fool [03:42.30]For the rest of your life [03:43.60]Work on it brother [03:45.41]And you"ll make it someday [03:46.77]Go for what you want [03:48.25]And don"t forget the faith [03:50.33]Look at yourself [03:51.44]And what you doin" right now [03:53.66]Stand back a minute [03:55.77]Just to check yourself out [03:58.37]Straighten out your life [04:00.26]And how you"re livin" each day [04:01.36]Get yourself together [04:02.45]"Cause you got to keep the faith [04:05.01]Uh, uh, uh [04:07.06]Don"t let nobody take you down, brother [04:13.94]Just keep your eyes on the prize [04:15.08]And your feet flat on the ground [04:16.40]Keep the faith, baby, yea [04:19.61]Because it"s just a matter of time [04:22.67]Before your confidence will win out [04:26.27]Lift up your mind [04:29.46]Before your mind gets blown [04:32.47]Some things in life [04:35.07]You best just leave them alone [04:35.70]Go for what you want [04:37.02]Don"t let it get in your way [04:38.04]You can make it happen [04:39.12]But ya got ta keep the faith [04:41.70]Gon" keep it brother [04:44.71]You got to keep the faith [04:49.05]Yeah keep the faith [04:49.99]Gon" keep it sister [04:51.27]You got to keep the faith [04:54.12]Now, now [04:54.84]I"ll show my brotha [04:56.20]How to do the thing right [04:57.46]Lift up your head [04:59.06]And show the world you got pride [05:00.67]Go for what you want [05:02.53]Don"t let "em get in your way [05:03.96]You can be a winner [05:05.95]If you keep the faith[05:07.91]Straighten out yourself [05:09.17]And get tour mind on track [05:10.85]Dust off your butt [05:12.58]And get your self-respect back [05:14.39]You"ve known me long enough [05:19.79]To know that I don"t play [05:20.61]Take it like you want it [05:22.03]But you got to keep the faith [05:23.46]Gon" [05:24.26]Don"t let nobody [05:25.29]Take you down [05:26.81]Just keep your eyes on the prize [05:29.47]And get your feet [05:32.30]Back on the ground [05:33.65]Keep the faith, baby, yea [05:36.76]Because it"s just [05:40.38]A matter of time [05:41.17]Before your confidence [05:42.50]Will win out [05:44.01]But till that day [05:45.68]I said you"ve got to keep the faith

求 朴宰范JayPark的 do what we do 中英文歌词

Do What We Do (prod.CHACHA))lyrics by viten QQ393398507YeahOoooCheck it outLet me come on overI"m gonna put you on a sofaAnd do just like I told yahAnd work that body right Oo shawtyI know that you"ve been naughtySo get up on my lapAnd work it work itTwerk it oh twerk itI wanna see you sweating girlThe best is what your getting girlSo lets take our timeLets go into the room in the bedMake you wet its the bestWhen we do what we doOr we can slip into the showerAnd make it last for hoursWhen we do what we doLets go into the room In the bedMake you wet its the bestWhen we do what we doOh baby oh baby oh baby, Oh yeahIt"s the best when we do what we doOh girl your making me wanna go crazyOut of my mindThe way you looking when you nakedI get so impatientBut then you tell me to hushBecause you don"t wanna rushWork it oh work itTwerk it oh twerk it babyI wanna see you sweating girlThe best is what your getting girlSo lets take our timeLets go into the room in the bedMake you wet its the bestWhen we do what we doOr we can slip into the showerAnd make it last for hoursWhen we do what we doLets go into the room in the bedMake you wet its the bestWhen we do what we doOh baby oh baby oh baby, Oh yeahIt"s the best when we do what we doIn the room in the bed, We do what we doIn the shower for hours, We do what we doOn the sofa on the floor, We do what we doGirl anywhere you want, Girl we do what we do

carjacking这个单词用的构词法是blending还是compounding,derivation

blending 是全尾式 car hijacking

JackVerity出生于哪里

JackVerity外文名:JackVerity职业:演员代表作品:《爷爷》合作人物:ColinSpencer

Ethan 和 Jayden 男孩(7岁)英文名用哪个好!

第67回 见土仪颦卿思故里 闻秘事凤姐讯家童 第68回 苦尤娘赚入大观园 酸凤姐大闹宁国府第69回 弄小巧用借剑杀人 觉大限吞生金自逝 第70回 林黛玉重建桃花社 史湘云偶填柳絮词

java里面goto怎么用

准确来说,java中没有goto这样的语句百,当然即使在c中也不推荐使用。在java中可以找到实现类似功能的度方法,该方法仅限于循环嵌套跳转到外层循环的情况。例如你可以在外层循环上使用lablename:(lablename是自定义标签名)的方问式标注,在内循环中,可以使用breaklablename;或者continuelablename跳转到外循环上。答这样就可以模拟出类似goto语句的功能。

java里面goto怎么用

准确来说,java中没有goto这样的语句,当然即使在c中也不推荐使用。在java中可以找到实现类似功能的方法,该方法仅限于循环嵌套跳转到外层循环的情况。例如你可以在外层循环上使用lablename:(lablename是自定义标签名)的方式标注,在内循环中,可以使用break lablename;或者continue lablename跳转到外循环上。这样就可以模拟出类似goto语句的功能。

如何用java语言编写将厘米转化英尺

查转化规则

jackwalk是什么品牌?

“杰克走路”针对国内二三级城市中25-35岁,有中等经济收入,追求时尚的男士。他们对流行文化有一定了解,有一定品牌意识,希望通过服饰的语言来表达他们对潮流的认知,同时也非常希望得到别人的认同---他们的自信往往来源于此。他们只是时尚潮流的追随者,并不狂热,他们并不能做到标新立异。他们是可以被引导和改变的群体。所以我们给“杰克走路”赋予这样的精神、文化---让他们通过产品冥想一种生活状态而怡然自得!所以,“杰克走路”应该是一种恰到好处的时尚产品。 我的了解是一般 我进过温州那里几个专卖店 店小 衣服的款式更新不够快 裤子质量差 款式不够时尚 外套有的还不错 比SEMIR 那些牌子强 比JACKJOHES GSTAR 这些又差了点

The Shadow(Japanese Ver.) 歌词

歌曲名:The Shadow(Japanese Ver.)歌手:BoA专辑:Only One(Japanese Ver.)The ShadowBoA作:BoA作曲:Joe Belmaatiかれるように光射す方へただひたすらに踊る my body何までもついてくる the shadow振り切る事は出来ないのAh you 君のをAh you 君の悲しみをすべてを引き受けるわ今痛みさえも耐えて立ち上がるThe shadow 光を凌してみこんでに眼差しでりつかせるThe shadow その瞬刷き取られた maskれていたのは shine or shadow?引き裂かれるような孤独の中で存在すべてを信できた私が守る私でさえも守ってくれる君がいたAh you 君の声をAh you 君の眼差しをすべてを抱きしめて生きるわもう一度 き始めるわThe shadow 光と共存して手をとって互いを支えけていられるThe shadow 最上の私を造して照らしけていて shine and shadowわるけてくことに皆慌てふためいてる代わりけてくことを皆恐れて叫んでいるわりけてくことはそういことなんかじゃない代わりけてくことはそうもがめてくことい事が一つ叶うなら君を照らしけるさその胸にAh you 消えることなどないAh you 君の描いたそのすべてはここにあるわ何一つ わらずに ここにThe shadow 光と影とは表一体一つになれるがきたのThe shadow すべてを映して受け入れて私の中でくThe shadow (shining in the shadow)http://music.baidu.com/song/52838422

Java使用gradle配置gradle user home

gradle user home指定一个放库文件的目录。上面distribution只有第二项local installation directory是用本地gradle程序其余的都需要网络,自动下载。

如何在gradle配置java home

首先当然是到官网gradle.org下载最新的gradle版本了,这里我下的是1.1版本,最新是2.0,不过没影响我们使用下载完成后,放到任意的位置,我的是在D:/gradle-1.1,然后需要放到换进配置,步骤是右键“计算机”-“属性”,进入“高级配置”,选择“环境变量”,点击”新建“,配置”GRADLE_HOME“继续在此处选择“path”,进行修改,加入“;%GRADLE_HOME%in”,注意此处没有引号,记得前面要加分号,这样就配置好gradle的环境变量了在命令窗口输入”gradle -version“,进行验证,出现以下提示则表示成功接下来是构建一个java项目,可以随便建一个文件夹,如:D:javapro1,按照gradle的规约新建相应的文件目录,类似于maven的一样,如下最主要的是在该目录下新建一个gradle文件,build.gradle,文件内容只要一句话即可:apply plugin:"java"在命令窗口中,进入项目对应文件夹,输入gradle build,即可完成构建,然后可以在项目文件夹中发现多了一些构建完的文件,这时就完成了一个最简单的项目构建后面的一些基本命令就是clean、check、assemble等待,具体也可以直接查看官网文档

如何使用gradle创建一个简单的java工程

方法/步骤1、根据需要,从官网下载最新jenkins软件包,同时下载最新的gradle软件包,jenkins插件,设置好环境变量,配置好端口,启动。2、点击新建任务输入项目名称和使用的jdk,同时还输入节点,不输入默认为master节点3、选择源码管理工具为CVS,Git或subversion,根据自身情况而定,然后填写URL路径@HEAD4、在构建一栏里增加构建步骤选择Invoke Gradle script,同时选择你的Gradle Version,Switches,Root Build script,对于多工程,需要添加多个Invoke Gradle script5、上传脚本:在每个子工程的根目录下放置名为gradle.build的脚本,内容如下:6、点击步骤1里面截图的立即构建,通过Console Output 查看结果。

Jay Sean的《Stolen》 歌词

歌曲名:Stolen歌手:Jay Sean专辑:小语种曾经的歌系列1Artist: Jay seanSong: StolenAlbum: Me Against MyselfChuraliya he Stolen (x10)You were my eyes when i couldn"t see,you were my air when i couldn"t breathe,but you always knew what you meant to me,yeaah.ah,ahYou were my strength when i was down,and you made me humble when i wouldn"t bow,I held on to your promise that you"d be around,ah,ah...ah,ahWhere were you when i was alright,tell me, did you knew I was alright,you, left me thinking I"d be alright,wont you come back to me,Ohhh..It"s crazy but i"m falling apart,It"s crazy how your leaving me scarred,It"s crazy girl wherever you are,you stole, my heartStolenJust like a moment....Stolenyou never owned it,Stolenyou took away my heart,I was feeling lost in my own world,neglecting your needs only once girl,If only we could try again once more,ohhh..Ohh..Now It"s the same sad story that we all know,how lovers make mistakes watch it all blow,now i don"t wanna be the one to let it all go.... noooWhere were you when i was alright,tell me, did you knew I was alright,you, left me thinking I"d be alright,wont you come back to me,Ohhh..It"s crazy but i"m falling apart,It"s crazy how your leaving me scarred,It"s crazy girl wherever you are,you stole, my heartI"s crazy but I"m going insane,feeling lost confused and ashamed,It"s crazy, hope your feeling my pain,you stole, my heartStolenJust like a moment....Stolenyou never owned it,Stolenyou took away my heart,ah,ah...ah,ah..No man can live without blood running through his veins,through his veinsand it"s hard to remember the summer now here is rainI don"t know how much longer that i can waitIt"s a thin line... between love and hate,Oh-whoa-whoaaaa...It"s crazy but i"m falling apart,It"s crazy how your leaving me scarred,It"s crazy girl wherever you are,you stole, my heartIt"s crazy but I"m going insane,feeling lost confused and ashamed,It"s crazy, hope your feeling my pain,you stole, my heartStolenJust like a moment....Stolenyou never owned it,Stolenyou took away my heart,ah,ah...ah,ah..http://music.baidu.com/song/18639602

Jay Sean的《Stolen》 歌词

歌曲名:Stolen歌手:Jay Sean专辑:Top of the Pops 2004Artist: Jay seanSong: StolenAlbum: Me Against MyselfChuraliya he Stolen (x10)You were my eyes when i couldn"t see,you were my air when i couldn"t breathe,but you always knew what you meant to me,yeaah.ah,ahYou were my strength when i was down,and you made me humble when i wouldn"t bow,I held on to your promise that you"d be around,ah,ah...ah,ahWhere were you when i was alright,tell me, did you knew I was alright,you, left me thinking I"d be alright,wont you come back to me,Ohhh..It"s crazy but i"m falling apart,It"s crazy how your leaving me scarred,It"s crazy girl wherever you are,you stole, my heartStolenJust like a moment....Stolenyou never owned it,Stolenyou took away my heart,I was feeling lost in my own world,neglecting your needs only once girl,If only we could try again once more,ohhh..Ohh..Now It"s the same sad story that we all know,how lovers make mistakes watch it all blow,now i don"t wanna be the one to let it all go.... noooWhere were you when i was alright,tell me, did you knew I was alright,you, left me thinking I"d be alright,wont you come back to me,Ohhh..It"s crazy but i"m falling apart,It"s crazy how your leaving me scarred,It"s crazy girl wherever you are,you stole, my heartI"s crazy but I"m going insane,feeling lost confused and ashamed,It"s crazy, hope your feeling my pain,you stole, my heartStolenJust like a moment....Stolenyou never owned it,Stolenyou took away my heart,ah,ah...ah,ah..No man can live without blood running through his veins,through his veinsand it"s hard to remember the summer now here is rainI don"t know how much longer that i can waitIt"s a thin line... between love and hate,Oh-whoa-whoaaaa...It"s crazy but i"m falling apart,It"s crazy how your leaving me scarred,It"s crazy girl wherever you are,you stole, my heartIt"s crazy but I"m going insane,feeling lost confused and ashamed,It"s crazy, hope your feeling my pain,you stole, my heartStolenJust like a moment....Stolenyou never owned it,Stolenyou took away my heart,ah,ah...ah,ah..http://music.baidu.com/song/59865089

求Jay Sean唱的《Stolen》的歌词,最好英汉版本都有,十分答谢!

Dashboard Confessional - StolenWe watched the season pull up its own stageAnd catch the last weekend of the last week.Before the gold and the glamour have been replacedAnother sun-soaked season fades away.You have stolen my heart.You have stolen my heart.Invitation, all in grand farewells,crushed the best one of the best ones.Clear liquor and cloudy eye,too early to save the night.You have stolen my heart.You have stolen my heart.And from the ballroom floor we are in celebration,one good stretch before our hibernation.Our dreams assured, and we all, we"ll sleep well.Sleep well, sleep well,sleep well, sleep well.You have stolen my, you have stolen,you have stolen my heart.Watch it spin around to the highest peels,you are the best one of the best ones.We all look like we feel.You have stolen my, you have stolen my,you have stolen my heart.ENDStolen歌词 - MTV音乐网

USC Trojans是什么意思?

南加州大学学子有个可爱的昵称 ‘ Trojans" - 木马人。 所以南加州大学的许多组织都冠以 USC Trojans 的名字。 这个传统源于 1912年。没有时间翻译你看看吧:Up to that time, teams from USC were called the Methodists or Wesleyans and neither nickname was looked upon with favor by university officials. Athletic Director Warren Bovard, son of university president Dr. George Bovard, asked Los Angeles Times sports editor Owen Bird to select an appropriate nickname."At this time, the athletes and coaches of the university were under terrific handicaps," Bird recalled. "They were facing teams that were bigger and better-equipped, yet they had splendid fighting spirit. The name "Trojans" fitted them."I came out with an article prior to a showdown between USC and Stanford in which I called attention to the fighting spirit of USC athletes and named them "Trojan" all the time, and it stuck."The term "Trojan" as applied to USC means to me that no matter what the situation, what the odds or what the conditions, the competition must be carried on to the end and those who strive must give all they have and never be weary in doing so."

James Blunt的《Cry》 歌词

歌曲名:Cry歌手:James Blunt专辑:Chasing Time: The Bedlam SessionsJames Blunt - CryI have seen peace. I have seen pain,Resting on the shoulders of your name.Do you see the truth through all their lies?Do you see the world through troubled eyes?And if you want to talk about it anymore,Lie here on the floor and cry on my shoulder,I"m a friend.I have seen birth. I have seen death.Lived to see a lover"s final breath.Do you see my guilt? Should I feel fright?Is the fire of hesitation burning bright?And if you want to talk about it once again,On you I depend. I"ll cry on your shoulder.You"re a friend.You and I have been through many things.I"ll hold on to your heart.I wouldn"t cry for anything,But don"t go tearing your life apart.I have seen fear. I have seen faith.Seen the look of anger on your face.And if you want to talk about what will be,Come and sit with me, and cry on my shoulder,I"m a friend.And if you want to talk about it anymore,Lie here on the floorand cry on my shoulder once again,cry on my shoulder,I"m a friend.http://music.baidu.com/song/2180036

歌词及中文 breath breaking benjamin

歌曲:Breath歌手:Breaking Benjamin所属专辑:Phobia制作人:(爱歌词网)www.Ailrc.comBreaking Benjamin - BreathI see nothing in your eyes,and the more I see the less I lie.Is it over yet, in my head?I know nothing of your kind,and I won"t reveal your evil mind.Is it over yet? I can"t win.So sacrifice yourself,and let me have what"s left.I know that I can findthe fire in your eyes.I"ll throw it all away,get away, please.You take the breath right out of me.You left a hole where my heart should be.You got to fight just to make it through,"cause I will be the death of you.This will be all over soon.Pour salt into the open wound.Is it over yet? Let me in.So sacrifice yourself,and let me have what"s left.I know that I can findthe fire in your eyes.I"ll throw it all away,get away, please.You take the breath right out of me.You left a hole where my heart should be.You got to fight just to make it through,"cause I will be the death of you.I"m waiting, I"m hating,realize, start hiding.You take the breath right out of me.You left a hole where my heart should be.You got to fight just to make it through,"cause I will be the death of you.

无耻之徒第4季Sheila Jackson是谁演的

美白奇迹有效

java 中的Graph 怎么用

可以用一些库来实现,比如 http://jgrapht.org/

Jesse Jane All American Girl 2007 女主角都有谁

[02-28] [欧美] [Jesse Jane All American Gi【影片名称】Jesse Jane All American Girl【影片主演】Jessie Jane【影片发行】Digital-Playground【发行日期】2006-2-23【影片大小】700MB 【播放时间】1:25:00【影片格式】AVI 【是否有码】无码【验证号码】6989dd94a41c3b6738844d632933f61f6db3efe6【档案数量】5【种子期限】15种,请大家多帮忙做种上传,3天后砍档【上传软体】Bitcomet 0.58【开放日期】2006.2.27 【图片预览】下面是可以下的地址。。。。http://208.98.17.139/forum/thread-50878-1-777.html

仙剑奇侠传java

上宝软下,有两种版本

我写的Java里面的一个窗体程序运行之后显示的用Graphic画出来的图形总是一直在刷新怎么办

public class Exercise2 extends JFrame{ private final int WINDOW_WIDTH = 500; // the width of a window private final int WINDOW_HEIGHT = 420; // the height of a window private JMenuBar menuBar; private JPanel panel; private JMenu shapesMenu, colorMenu,drawingModeMenu; private JMenuItem rectangleItem,ovalItem,polygonItem,colorChooserItem; private JRadioButtonMenuItem fillItem,unfillItem; private Color selectedColor; private int i; public void paint(Graphics g) { int[] xCoords = { 200, 300, 395, 300, 200, 100}; int[] yCoords = { 105, 105, 210, 315, 315, 210}; super.paint(g); g.setColor(selectedColor); if(i == 1){ if(unfillItem.isSelected()){ g.drawRect(150, 140, 200, 140); }else{ g.fillRect(150, 140, 200, 140); } } else if(i == 2){ if(unfillItem.isSelected()){ g.drawOval(150, 140, 200, 140); }else{ g.fillOval(150, 140, 200, 140); } } else if(i == 3){ if(unfillItem.isSelected()){ g.drawPolygon(xCoords, yCoords, 6); }else{ g.fillPolygon(xCoords, yCoords, 6); } } Exercise2.this.repaint(); } public class MenuListener implements ActionListener{ @Override public void actionPerformed(ActionEvent e) { if(unfillItem.isSelected()){ if(e.getSource() == rectangleItem){ i = 1; }else if(e.getSource() == ovalItem){ i = 2; } else if(e.getSource() == polygonItem){ i = 3; } else if(e.getSource() == colorChooserItem){ i = 4; } } else{ if(e.getSource() == rectangleItem){ i = 1; } else if(e.getSource() == ovalItem){ i = 2; } else if(e.getSource() == polygonItem){ i = 3; } else if(e.getSource() == colorChooserItem){ i = 4; } } } }}总是一直刷新是不是哪里死循环了,检查一下代码。

Michale Jackson_____the king of pop. A.is well-known with B.is well-known for C.is...

D 因为michael是作为king of pop 被人熟知的,A是以什么而被人熟知的,B是为了什么而被熟知的,C跟B的意思基本一样

java Graphics类中getGraphics()方法有什么用?希望能详细一点...真心感谢

首先给你看个方法public void update(Graphics g) {if(offScreenImage == null) {offScreenImage = this.createImage(GAME_WIDTH,GAME_HEIGHT);}Graphics gOffScreen = offScreenImage.getGraphics();Color c = gOffScreen.getColor();gOffScreen.setColor(Color.darkGray);gOffScreen.fillRect(0,0,GAME_WIDTH,GAME_HEIGHT);gOffScreen.setColor(c);paint(gOffScreen);g.drawImage(offScreenImage,0,0,null);}这个是游戏加入双缓冲的片段。如果需要这个类的所有源码再联系我

JAVA中如何用graphics 作圆环

画两个圆不就好了?

谁可以跟我讲讲java中的Graphics是用来干什么的???具体点,通俗点~

画图的吧

java的Graphics跟Graphics2D有没有区别呀?

Graphics 类是所有图形上下文的抽象基类,允许应用程序在组件(已经在各种设备上实现)以及闭屏图像上进行绘制。此 Graphics2D 类扩展 Graphics 类,以提供对几何形状、坐标转换、颜色管理和文本布局更为复杂的控制。它是用于在 Java(tm) 平台上呈现二维形状、文本和图像的基础类。基本上用Graphics 就够平时绘图用了

JAVA中的Graphics怎么用啊。

1楼正解

graphics类 java 怎么用

Graphics类提供基本绘图方法,Graphics2D类提供更强大的绘图能力。Graphics类提供基本的几何图形绘制方法,主要有:画线段、画矩形、画圆、画带颜色的图形、画椭圆、画圆弧、画多边形等。1. 画线在窗口画一条线段,可以使用Graphics类的drawLine()方法: drawLine(int x1,int y1,int x2,int y2)例如,以下代码在点(3,3)与点(50,50)之间画线段,在点(100,100)处画一个点。 g.drawLine(3,3,50,50);//画一条线段 g.drawLine(100,100,100,100);//画一个点。2. 画矩形有两种矩形:普通型和圆角型。(1) 画普通矩形有两个方法:drawRect(int x,int y,int width,int height):画线框围起来的矩形。其中参数x和y指定左上角的位置,参数width和height是矩形的宽和高。fillRect(int x,int y,int width,int height):是用预定的颜色填充一个矩形,得到一个着色的矩形块。以下代码是画矩形的例子: g.drawRect(80,100,40,25);//画线框 g.setColor(Color.yellow);g.fillRect(20,70,20,30);//画着色块(2)画圆角矩形也有两个方法:drawRoundRect(int x,int y,int width, int height, int arcWidth, int arcHeight):是用线围起来的圆角矩形。其中参数x和y指定矩形左上角的位置;参数width和heigth是矩形的宽和高;arcWidth和arcHeight分别是圆角弧的横向直径和圆角弧的纵向直径。fillRoundRect(int x,int y,int width,int height,int arcWidth,int archeight):是用预定的颜色填充的圆角矩形。各参数的意义同前一个方法。以下代码是画矩形的例子: g.drawRoundRect(10,10,150,70,40,25);//画一个圆角矩形 g.setColor(Color.blue); g.fillRoundRect(80,100,100,100,60,40);//涂一个圆角矩形块 g.drawRoundRect(10,150,40,40,40,40);//画圆 g.setColor(Color.red); g.fillRoundRect(80,100,100,100,100,100);//画圆块可以用画圆角矩形方法画圆形,当矩形的宽和高相等,圆角弧的横向直径和圆角弧的纵向直径也相等,并等于矩形的宽和高时,画的就是圆形。参见上述例子中的注释,前一个是画圆,后一个是涂圆块。3. 画三维矩形画三维矩形有两个方法:draw3DRect(int x,int y,int width,int height, boolean raised):画一个突出显示的矩形。其中x和y指定矩形左上角的位置,参数width和height是矩形的宽和高,参数raised是突出与否。fill3DRect(int x,int y,int width,int height,boolean raised):用预定的颜色填充一个突出显示的矩形。以下代码是画突出矩形的例子: g.draw3DRect(80,100,40,25,true);//画一个线框 g.setColor(Color.yellow); g.fill3DRect(20,70,20,30,true);//画一个着色块4.画椭圆形椭圆形由椭圆的横轴和纵轴确定。画椭圆形有两个方法:drawOval(int x,int y,int width,int height):是画用线围成的椭圆形。其中参数x和参数y指定椭圆形左上角的位置,参数width和height是横轴和纵轴。fillOval(int x,int y,int width,int height):是用预定的颜色填充的椭圆形,是一个着色块。也可以用画椭圆形方法画圆形,当横轴和纵轴相等时,所画的椭圆形即为圆形。以下代码是画椭圆形的例子: g.drawOval(10,10,60,120);//画椭圆 g.setColor(Color.cyan);g.fillOval(100,30,60,60);//涂圆块 g.setColor(Color.magenta);g.fillOval(15,140,100,50);//涂椭圆5. 画圆弧画圆弧有两个方法:drawArc(int x,int y,int width,int height,int startAngle, int arcAngle):画椭圆一部分的圆弧线。椭圆的中心是它的外接矩形的中心,其中参数是外接矩形的左上角坐标(x,y),宽是width,高是heigh。参数startAngle的单位是 “度”,起始角度0度是指3点钟方位.参数startAngle和arcAngle表示从startAngle角度开始,逆时针方向画arcAngle度的弧,约定,正值度数是逆时针方向,负值度数是顺时针方向,例如-90度是6点钟方位。fillArc(int x,int y,int width, int height, int startAngle, int arcAngle):用setColor()方法设定的颜色,画着色椭圆的一部分。以下代码是画圆弧的例子: g.drawArc(10,40,90,50,0,180);//画圆弧线 g.drawArc(100,40,90,50,180,180);//画圆弧线 g.setColor(Color.yellow); g.fillArc(10,100,40,40,0,-270);//填充缺右上角的四分之三的椭圆 g.setColor(Color.green); g.fillArc(60,110,110,60,-90,-270);//填充缺左下角的四分之三的椭圆6. 画多边形多边形是用多条线段首尾连接而成的封闭平面图。多边形线段端点的x坐标和y坐标分别存储在两个数组中,画多边形就是按给定的坐标点顺序用直线段将它们连起来。以下是画多边形常用的两个方法:drawPolygon(int xpoints[],int yPoints[],int nPoints):画一个多边形fillPolygon(int xPoints[],int yPoints[],int nPoints):用方法setColor()设定的颜色着色多边形。其中数组xPoints[]存储x坐标点,yPoints[]存储y坐标点,nPoints是坐标点个数。注意,上述方法并不自动闭合多边形,要画一个闭合的多边形,给出的坐标点的最后一点必须与第一点相同.以下代码实现填充一个三角形和画一个八边形。 int px1[]={50,90,10,50};//首末点相重,才能画多边形 int py1[]={10,50,50,10}; int px2[]={140,180,170,180,140,100,110,140}; int py2[]={5,25,35,45,65,35,25,5}; g.setColor(Color.blue); g.fillPolygon(px1,py1,4); g.setColor(Color.red); g.drawPolygon(px2,py2,9);也可以用多边形对象画多边形。用多边形类Polygon创建一个多边形对象,然后用这个对象绘制多边形。Polygon类的主要方法:Polygon():创建多边形对象,暂时没有坐标点。Polygon(int xPoints[],int yPoints[],int nPoints):用指定的坐标点创建多边形对象。addPoint():将一个坐标点加入到Polygon对象中。drawPolygon(Polygon p):绘制多边形。 fillPolygon(Polygon p):和指定的颜色填充多边形。例如,以下代码,画一个三角形和填充一个黄色的三角形。注意,用多边形对象画封闭多边形不要求首末点重合。 int x[]={140,180,170,180,140,100,110,100}; int y[]={5,25,35,45,65,45,35,25}; Polygon ponlygon1=new Polygon(); polygon1.addPoint(50,10); polygon1.addPoint(90,50); polygon1.addPoint(10,50); g.drawPolygon(polygon1); g.setColor(Color.yellow); Polygon polygon2 = new Polygon(x,y,8); g.fillPolygon(polygon2);7. 擦除矩形块当需要在一个着色图形的中间有一个空缺的矩形的情况,可用背景色填充一矩形块实现,相当于在该矩形块上使用了 “橡皮擦”.实现的方法是: clearRect(int x,int y, int width,int height):擦除一个由参数指定的矩形块的着色。例如,以下代码实现在一个圆中擦除一个矩形块的着色: g.setColor(Color.blue); g.fillOval(50,50,100,100);g.clearRect(70,70,40,55);8. 限定作图显示区域用一个矩形表示图形的显示区域,要求图形在指定的范围内有效,不重新计算新的坐标值,自动实现超出部分不显示。方法是clipRect(int x,int y,int width,int height),限制图形在指定区域内的显示,超出部分不显示。多个限制区有覆盖时,得到限制区域的交集区域。例如,代码: g.clipRect(0,0,100,50);g.clipRect(50,25,100,50);相当于 g.clipRect(50,25,50,25);9. 复制图形利用Graphics类的方法copyArea()可以实现图形的复制,其使用格式是: copyArea(int x,int y,int width,int height, int dx, int dy),dx和dy分别表示将图形粘贴到原位置偏移的像素点数,正值为往右或往下偏移是,负值为往左或往上偏移量。位移的参考点是要复制矩形的左上角坐标。例如,以下代码示意图形的复制,将一个矩形的一部分、另一个矩形的全部分别自制。 g.drawRect(10,10,60,90); g.fillRect(90,10,60,90); g.copyArea(40,50,60,70,-20,80); g.copyArea(110,50,60,60,10,80);

java中关键字const是什么意思?

定义一个变量为常量,在程序运行过程中不可改变

Java的const怎么用

如果定义常量用final

暮光之城你喜欢Edward还是Jacob?

我喜欢Jacob(雅各布)。雅各布能给人安全感,对心爱的女孩子能够无怨无悔地付出!而且他的身体是热的,我觉得依偎在他的怀里会非常非常地温暖!他对贝拉的好令我很感动!

在java里Composite是什么

是java的一种设计模式

manjaro怎么安装中文输入法

http://lzumi.cn/index.php/2019/05/23/surface-pro-4%e5%ae%89%e8%a3%85linuxmanjaro%e3%80%81windows10%e5%8f%8c%e7%b3%bb%e7%bb%9f/

up samantha jade中英文歌词

Up! - Samantha JadeWe own the nightWe own the nightSo let"s turn it,turn it,turn itAnd reach the other sideWe"re flying highFlying so highAnd let"s turn it turn it upTonight we"re dancing in the skyYou heard the legends ,have you?But you"re miles away from the sunYou have to take me to heavenTurn it turn it upWhen I feel your heart beating fasterHide the love from the drumsTurn the speakers up to the shadowTurn it, turn it upLet"s turn it up, you know I like it loudLet"s turn it up, don"t stay turn it turn itTurn it up, it"s going hundred milesTurn it up, up up upLet"s turn it up, you know I like it loudLet"s turn it up, say turn it turn itTurn it up, it"s going hundred milesTurn it up, up up upWe own the light, we own the lightSo let"s turn it turn it upTonight it"s only you and IWe own the stars, shine like the starsSo let"s turn it turn it tonight this world is oursYou heard the legends ,have you?But you are miles away from the sunYou have to take me to heavenTurn it ,turn it upWhen I feel your heart beating fasterHide the love from the drumsTurn the speakers up to the shadowTurn it, turn it upLet"s turn it up, you know I like it loudLet"s turn it up, don"t stay turn it turn itTurn it up, it"s going hundred milesTurn it up, up up upLet"s turn it up, you know I like it loudLet"s turn it up, don"t stay turn it turn itTurn it up, it"s going hundred milesTurn it up, up up upYou heard the legends ,have you?You have to take me to heavenTurn it, turn it upWhen I feel your heart beating fasterTurn it, turn it upSo turn it up,let us turn it upSo turn it up,up,upYou know I like it upTurn it up,up,upAnd also turn it,turn it,turn it up,up,upIt is going down tonightSo turn it up,up,upUp,up,upSo turn it up,up,upYou know I like it upTurn it up,up,upAnd also turn it,turn it,turn it up,up,upIt is going down tonightSo turn it up,up,upUp,up,up

java中的Connection怎么用?

Connection 对象的数据库能够提供描述其表、所支持的 SQL 语法、存储过程、此连接功能等等的信息。此信息是使用 getMetaData 方法获得的。注:在配置 Connection 时,JDBC 应用程序应该使用适当的 Connection 方法,比如 setAutoCommit 或 setTransactionIsolation。在有可用的 JDBC 方法时,应用程序不能直接调用 SQL 命令更改连接的配置。默认情况下,Connection 对象处于自动提交模式下,这意味着它在执行每个语句后都会自动提交更改。如果禁用了自动提交模式,那么要提交更改就必须显式调用 commit 方法;否则无法保存数据库更改。使用 JDBC 2.1 核心 API 创建的新 Connection 对象有一个与之关联的最初为空的类型映射。用户可以为此类型映射中的 UDT 输入一个自定义映射关系。在使用 ResultSet.getObject 方法从数据源中获取 UDT 时,getObject 方法将检查该连接的类型映射是否有对应该 UDT 的条目。如果有,那么 getObject 方法将该 UDT 映射到所指示的类。如果没有条目,则使用标准映射关系映射该 UDT。用户可以创建一个新的类型映射,该映射是一个 java.util.Map 对象,可在其中创建一个条目,并将该条目传递给可以执行自定义映射关系的 java.sql 方法。在这种情况下,该方法将使用给定的类型映射,而不是与连接关联的映射。例如,以下代码片段指定 SQL 类型 ATHLETES 将被映射到 Java 编程语言中的 Athletes 类。该代码片段为 Connection 对象 con 获取类型映射,并在其中插入条目,然后使用新的条目将该类型映射设置为连接的类型映射。java.util.Map map = con.getTypeMap();map.put("mySchemaName.ATHLETES", Class.forName("Athletes"));con.setTypeMap(map);

manjaro 黑屏

1.首先ctrl + alt + f3 进入tty模式2.然后发现自己配置的镜像不能用,用这个更新mirrorssudo pacman-mirrors -f33.最后更新后,就可以进入了pacman -Syyu

manjaro 可以用archlinux的源吗

可以的,其实基于arch的发行版大多数软件都是用的arch官方源,只有部分特性软件才用自己的源来维护更新,你可以打开/etc/pacman.conf看看配置就知道了。下载的系统映像iso文件通常都有一个pkglist文件,打开可以查看都有哪些软件是发行版开发者自己维护的软件列表。

java中的Connection是什么,有哪些方法? 每个方法的返回值是什么意思?

connection是java中的一个类,在java.sql包下,用于获得数据库的连接,用的比较多的是返回createStatement和prepareStatement,用来返回一个statement,这些查api吧,我也说不清楚,太多了

在Java中connection的常用方法及其描述是什么

下个jdk的api手册,作用,用法一目了然

java中的Connection怎么用?

Connection 对象的数据库能够提供描述其表、所支持的 SQL 语法、存储过程、此连接功能等等的信息。此信息是使用 getMetaData 方法获得的。注:在配置 Connection 时,JDBC 应用程序应该使用适当的 Connection 方法,比如 setAutoCommit 或 setTransactionIsolation。在有可用的 JDBC 方法时,应用程序不能直接调用 SQL 命令更改连接的配置。默认情况下,Connection 对象处于自动提交模式下,这意味着它在执行每个语句后都会自动提交更改。如果禁用了自动提交模式,那么要提交更改就必须显式调用 commit 方法;否则无法保存数据库更改。使用 JDBC 2.1 核心 API 创建的新 Connection 对象有一个与之关联的最初为空的类型映射。用户可以为此类型映射中的 UDT 输入一个自定义映射关系。在使用 ResultSet.getObject 方法从数据源中获取 UDT 时,getObject 方法将检查该连接的类型映射是否有对应该 UDT 的条目。如果有,那么 getObject 方法将该 UDT 映射到所指示的类。如果没有条目,则使用标准映射关系映射该 UDT。用户可以创建一个新的类型映射,该映射是一个 java.util.Map 对象,可在其中创建一个条目,并将该条目传递给可以执行自定义映射关系的 java.sql 方法。在这种情况下,该方法将使用给定的类型映射,而不是与连接关联的映射。例如,以下代码片段指定 SQL 类型 ATHLETES 将被映射到 Java 编程语言中的 Athletes 类。该代码片段为 Connection 对象 con 获取类型映射,并在其中插入条目,然后使用新的条目将该类型映射设置为连接的类型映射。java.util.Map map = con.getTypeMap();map.put("mySchemaName.ATHLETES", Class.forName("Athletes"));con.setTypeMap(map);

《Benjamin Franklin》txt下载在线阅读全文,求百度网盘云资源

《Benjamin Franklin》(Franklin, Benjamin)电子书网盘下载免费在线阅读链接: https://pan.baidu.com/s/18a8Y5i0on-UEs0uAXoaz4A 提取码: kzbc书名:Benjamin Franklin作者:Franklin, Benjamin出版年份:2011-1页数:230内容简介:Printer and publisher, author and educator, scientist and inventor, statesman and philanthropist, Benjamin Franklin was the very embodiment of the American type of self-made man. In 1771, at the age of 65, he sat down to write his autobiography, "having emerged from the poverty and obscurity in which I was born and bred to a state of affluence and some degree of reputation in the world, and having gone so far through life with a considerable share of felicity." The result is a classic of American literature. On the eve of the tercentenary of Franklin"s birth, the university he founded has selected the Autobiography for the Penn Reading Project. Each year, for the past fifteen years, the University of Pennsylvania has chosen a single work that the entire incoming class, and a large segment of the faculty and staff, read and discuss together. For this occasion the University of Pennsylvania Press will publish a special edition of Franklin"s Autobiography, including a new preface by University president Amy Gutmann and an introduction by distinguished scholar Peter Conn. The volume will also include four short essays by noted Penn professors as well as a chronology of Franklin"s life and the text of Franklin"s Proposals Relating to the Education of Youth in Pennsylvania, a document resulting in the establishment of an institution of higher education that ultimately became the University of Pennsylvania. No area of human endeavor escaped Franklin"s keen attentions. His ideas and values, as Amy Gutmann notes in her remarks, have shaped the modern University of Pennsylvania profoundly, "more profoundly than have the founders of any other major university of college in the United States." Franklin believed that he had been born too soon. Readers will recognize that his spirit lives on at Penn today. Essay contributors: Richard R. Beeman, Paul Guyer, Michael Weisberg, and Michael Zuckerman.

请用英语把Benjamin Franklin的风筝实验过程简述一遍

简述:Almost everyone has heard of Franklin"s famous experiment,but few of us actually understand how the experiment worked.On a stormy day,Benjamin Franklin went outside with a kite in his hand.When ...

一篇二级英语的阅读理解Benjamin Franklin was born in 1706 and died in 17?

CBBA 好简单呀,1,C B B A,0,一篇二级英语的阅读理解 Benjamin Franklin was born in 1706 and died in 1790.The philosopher(哲学家)and writer was one of the most important men in the early days of the United States. He believed strongly in the importance of hard work, and he himself worked hard all his life, form the time he left school at the age of ten. "Poor Richard," a character Franklin created, summarized Franklin"s ideas in short sayings. Many of Poor Richard"s sayings are still remembered today. One of the most famous is "Early to bed, and early to rise, makes a man healthy, wealthy and wise," from the essay(散文)"The Way of Wealth." In the same essay , Franklin talks about the danger of laziness and the value of ambitiousness(抱负) .He asks what is acplished by "wishing and hoping for better times". He says that we can make these times better if we try hard enough. People who spend all their time just hoping will die without food. They shouldn"t expect everything to be easy, or as Poor Richard says, there are no gains without pains." Franklin also says that we should work today, not wait until tomorrow. "One today is worth two tomorrow," says Poor Richard." Never leave that till tomorrow, which you can do today." 68.The main idea of the text is that . A.one should have a clever mind B.one should get up very early C.one should work hard all one"s life D.one should make everything hard to do 69.The sayings mentioned in the text were written by . A.one of Franklin"s friends B.Franklin himself C.Franklin and Poor Richard D.various writers 70.According to the text, Poor Richard is a person who . A.used to help Franklin B.appears in Franklin"s books C.knows a lot of old sayings D.works very hard all his life 71."One today is worth two tomorrow"means that . A.if you want to do something valuable, do it at once B.one shouldn"t hope for better times C.everyone can have a bright future D.we have to enjoy ourselves today , not tomorrow

Benjamin Franklin放风筝的故事

Franklin"s KiteProbably the most famous experiment to do with lightning is that of Benjamin Franklin and his famous kite.What Franklin was investigating was whether or not lightning was an electric phenomenon. This seems fairly obvious to most of us today, but we must remember that in Franklin"s day the largest sparks they could make were under an inch long! Since lightning is several miles long it is not so obvious that they can be the same.The question often arises whether or not Franklin actually did this experiment, and the answer is we do not know for sure. One thing, however, is certain: if he did do an experiment like this, he did not do it the way it is often shown. That is, he didn"t tie a key to the kite string, fly it in a thunderstorm, and wait for it to be struck by lightning! Such an experiment would be very dramatic--and quite fatal.There are safe ways to do similar things, however, and Franklin, in his various writtings, shows that he was quite aware of both the dangers and the alternatives.Franklin realized that if lightning was electricity, then it must be an awful lot of the stuff, and that it must take a long time to amass in the storm. Therefore, he suggested, fly the kite early in the storm before the lightning comes near you.He had several variations on how to show electricity was present--you could draw sparks from a key tied to the string, or you could attach the string to a Leyden Jar, which is a device for collecting electricity (a capacitor). If the jar was empty before flying the kite and full afterwards then that is good evidence that thunderclouds contain electricity. In our demonstration the kite is suspended from a plastic rod (since there is no wind). The string goes down into a jar (not a Leyden Jar) where it is attached to a key. Below the key is a gap of 1-2 inches before a grounded metal ball.Notice in the picture on the left (which was taken with the machine running, but not strongly enough to make sparks) that the kite"s tail is being pulled towards the dome of the machine. This is a big example of static cling--the same thing that sticks your clothes together in a clothes drier. Notice also that there is a spark jumping between the key and the ball inside the jar. There is one other effect that we demonstrate using our kite, but it is too faint to photograph easily. It is called Saint Elmo"s Fire, or, to scientists, corona. It shows up as a faint purple glow around the edges of the kite, and would have been seen in the rigging and masts by sailors on the old wooden sailing ships.To the sailors, who named it after their patron saint, it was a sign of protection, but you can see in this picture how little it protects the kite! In fact it is a sign of great danger. So how did the sailors get it wrong?The reason is probably that all sailors in thunderstorms saw coronas, but only those whose ships were not struck and destroyed made it back to tell anyone about it!

美国总统Benjamin Franklin和放风筝的科学家富兰克林是同一个人吗

美国历史上一位伟大的富兰克林,本杰明·富兰克林(Benjamin Franklin)(1706-1790)——资本主义精神最完美的代表,十八世纪美国最伟大的科学家和发明家,著名的政治家、外交家、哲学家、文学家和航海家以及美国独立战争的伟大领袖。他一生最真实的写照是他自己所说过的一句话“诚实和勤勉,应该成为你永久的伴侣。”传说他曾经用风筝引下雷电,并储存起来,关于这个“天电”实验一直存在质疑,富兰克林本人也从未正式承认做过这个实验,尽管对富兰克林是否做过风筝实验存在争议,但他是在1750年第一个提出用实验来证明天空中的闪电就是电的科学家。后来他发明了避雷针。

sweaters jackets什么意思

毛衣外套的意思吧。。。

i have a jacket and sweaters句型对吗?

这样说,免得发生歧义。l have a jacket and some sweaters.

JayStewart是做什么的

JayStewartJayStewart是一名影视演员,主要作品有《冲向天外天》等。外文名:JayStewart职业:演员代表作品:冲向天外天合作人物:乔·丹特

JamesL.Stewart人物介绍

JamesL.StewartJamesL.Stewart,是一名制作人,代表作有《彻夜狂欢》等。外文名:JamesL.Stewart职业:制作人代表作品:《彻夜狂欢》合作人物:TamarSimonHoffs

Java:关于Java线程的中断(interrupt)的描述,这句话是什么意思呢?

不要用翻译机直接翻译,这样是有偏差的,interrupt的意思就是中断一个正在执行的线程。就这么简单

关于java中的interrupt()方法疑问

我也想问这问题

Java 线程调用interrupt的作用

interrupt()只是改变中断状态而已. interrupt()不会中断一个正在运行的线程。这一方法实际上完成的是,给受阻塞的线程抛出一个中断信号, 这样受阻线程就得以退出阻塞的状态。更确切 的说,如果线程被Object.wait, Thread.join和Thread.sleep三种方法之一阻塞, 那么,它将接收到一个中断异常(InterruptedException),从而提早地终结被阻塞状态。 如果线程没有被阻塞,这时调用interrupt()将不起作用;否则,线程就将得到InterruptedException异常(该线程必须事先预备好处理此状况),接着逃离阻塞状态。 interrupt和stop不同的是,它不会终止整个线程,而是终止Object.wait, Thread.join和Thread.sleep三种方法造成的阻塞状态,如果在调用它时,线程处于阻塞状态了,调用interrupt会抛出InterruptedException

java中interrupt

JDK API的说明如下:public void interrupt()中断线程。 如果当前线程没有中断它自己(这在任何情况下都是允许的),则该线程的 checkAccess 方法就会被调用,这可能抛出 SecurityException。 如果线程在调用 Object 类的 wait()、wait(long) 或 wait(long, int) 方法,或者该类的 join()、join(long)、join(long, int)、sleep(long) 或 sleep(long, int) 方法过程中受阻,则其中断状态将被清除,它还将收到一个 InterruptedException。 如果该线程在可中断的通道上的 I/O 操作中受阻,则该通道将被关闭,该线程的中断状态将被设置并且该线程将收到一个 ClosedByInterruptException。 如果该线程在一个 Selector 中受阻,则该线程的中断状态将被设置,它将立即从选择操作返回,并可能带有一个非零值,就好像调用了选择器的 wakeup 方法一样。 如果以前的条件都没有保存,则该线程的中断状态将被设置。中断一个不处于活动状态的线程不需要任何作用。 抛出: SecurityException - 如果当前线程无法修改该线程。注意这句:如果当前线程没有中断它自己(这在任何情况下都是允许的)说明调用interrupt方法不一定会真的中断线程。

java sprinng @Scheduled 定时器注解问题

定时任务bean定时器其中cron="0003112?"就是每年12月31日凌晨执行autoScheduled就是执行的方法

java scheduled 多个定时任务会冲突吗

定时任务本身不会有冲突,有冲突的是任务中操作处理的资源或数据,需要对有写入的文件或数据进行排它锁,保障线程处理的安全性。

japan英语写作文

Japan, a country that holds a unique position in the world with its fascinating blend of old and new cultures. The land of the rising sun is known for its technological advancements, delicious cuisine, traditional architecture, and picturesque landscapes.One of Japan"s most prominent aspects is its language. Japanese is the official language of Japan and is spoken by more than 128 million people worldwide. It belongs to the Japonic language family, which also includes the Ryukyuan languages. Although Japanese is primarily spoken in Japan, it has become increasingly popular among foreign language learners due to Japan"s economic and cultural influence.Learning Japanese is not an easy feat as it involves mastering three writing systems: hiragana, katakana, and kanji. Hiragana and katakana are phonetic alphabets used for writing Japanese words, while Kanji consists of Chinese characters that represent entire words or concepts.Understanding Japanese is essential to fully appreciate the rich culture and traditions of Japan, from tea ceremonies and flower arrangement to calligraphy and the art of sushi-making. Additionally, knowing Japanese can open up opportunities for business and employment in various fields such as technology, automotive, and fashion.In conclusion, Japan is a country full of wonders, and learning the Japanese language can deepen one"s understanding and appreciation of its unique culture and traditions.Key vocabulary:- Japonic language family: a language family comprising the Japanese language and several other languages spoken in Japan.- Hiragana: A phonetic alphabet used for writing Japanese words- Katakana: A phonetic alphabet used for writing foreign loanwords in Japanese.- Kanji: Chinese characters used in the Japanese writing system.- Calligraphy: the art of writing beautifully- Tea ceremony: a traditional ceremony involving the preparation and presentation of matcha, a powdered form of green tea- Sushi-making: the art of preparing and serving sushi

有关Java Swing动态增加组件

这简单啊,创建一个全局变量,增加按钮后++就好了啊

【80分】求DJ Jammy---Rise And Fall 正确歌词

[ti:rise and fall][ar:funeral for a friend][al:into oblivion ][by:(爱歌词网)www.zhlrc.com]funeral for a friend - rise and fallcalm the storm, we man the ramparts,in a moment we are, prepared.this waves unrest, finds us all dead,one night beyond these walls.under turrets we close the call,let the water rise above us all.under turrets we close the call,let the water rise above us all.one night beyond these walls witnessed,our rise and fall.empire will wait, outside these gates,convert, and conquer all.under turrets we close the calllet the water rise above us all.under turrets we close the calllet the water rise above us all.and it"s enough, to choke us all,we"re living through, the rise and fall,and it"s enough, to choke us all,we"re living through, the rise and fall.under turrets we close the call,let the water rise above us all.under turrets we close the call,let the water rise above us all.the rise and fall, above us all, the rise and fall.the rise and fall, above us all, the rise and fall.

java uuid 和guid 的区别

全局唯一标识符(GUID,Globally Unique Identifier)是一种由算法生成的二进制长度为128位的数字标识符。GUID主要用于在拥有多个节点、多台计算机的网络或系统中。在理想情况下,任何计算机和计算机集群都不会生成两个相同的GUID。GUID 的总数达到了2^128(3.4×10^38)个,所以随机生成两个相同GUID的可能性非常小,但并不为0。所以,用于生成GUID的算法通常都加入了非随机的参数(如时间),以保证这种重复的情况不会发生。GUID一词有时也专指微软对UUID标准的实现。UUID是由一组32位数的16进制数字所构成,是故UUID理论上的总数为16^32=2^128,约等于3.4 x 10^38。也就是说若每纳秒产生1兆个UUID,要花100亿年才会将所有UUID用完。

java中生成的guid是多少位

是一个32位的字符串

java中File fileDir = new File(fileDirName)是什么意思;

对!这里的file可以是目录也可以是文件。。

如何用java获取linux下某文件夹的大小

通过FileInputStream来获取的文件大小:public static void main(String[] args) { FileInputStream fis= null; try{ File f= new File("D:\CentOS-6.5-x86_64-bin-DVD1.iso"); fis= new FileInputStream(f); logger.info(fis.available()); }catch(Exception e){ logger.error(e); } finally{ if (null!=fis){ try { fis.close(); } catch (IOException e) { logger.error(e); } } }}下面是运行结果:2147483647它是Integer.MAX_VALUE,也就是有符号整型能表示的最大数值。
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