blocks|key|1162438|text|这里是尼尔·加弗的博客是在Java中引入闭包的先驱之一。他从2007年1月28日开始写的关于关闭的文章在他的博客上被命名为闭包的定义+--除了视频之外，还有很多信息可以让你开始。这里是一个很好的谷歌谈话-+编程语言中的高级主题.+Java的闭包与Neal，以及。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1162439|entityMap|0|LINK|mutability|MUTABLE|url|http://gafter.blogspot.com/|1|http://gafter.blogspot.co.uk/2007/01/definition-of-closures.html|2|http://www.youtube.com/watch?v=0zVizaCOhME^0|3|8|0|1P|5|1|2V|J|2|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]|$A|T|B|U|1|V]|$A|W|B|X|1|Y]]|C|$]]|$1|D|3|-4|5|6|7|Z|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]|N|$5|G|H|I|C|$J|O]]]]

Here is <a href="http://gafter.blogspot.com/" rel="noreferrer">Neal Gafter's blog</a> one of the pioneers introducing closures in Java. His post on closures from January 28, 2007 is named <a href="http://gafter.blogspot.co.uk/2007/01/definition-of-closures.html" rel="noreferrer">A Definition of Closures</a> On his blog there is lots of information to get you started as well as videos. An here is an excellent Google talk - <a href="http://www.youtube.com/watch?v=0zVizaCOhME" rel="noreferrer">Advanced Topics In Programming Languages - Closures For Java</a> with Neal Gafter, as well.

blocks|key|2359534|text|闭包是一个代码块，可以通过访问封闭作用域的变量来引用(并传递)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2359535|自Java1.1以来，匿名内部类以非常详细的方式提供了这个工具。它们也有一个限制，即只能使用final+(并明确分配)局部变量。(注意，即使是非final局部变量也在作用域中，但不能使用。)|offset|length|style|CODE|2359536|Java+8旨在为单方法接口*提供一个更简洁的版本，称为"lambdas“。Lambda与匿名内部类有很多相同的限制，尽管一些细节是随机变化的。|2359537|Lambda项目和JSR+335正在开发Lambdas。|2359538|*最初的设计更灵活，允许单一抽象方法(SAM)类型。不幸的是，新的设计不那么灵活，但确实试图证明允许在接口中实现是合理的。|2359539|entityMap|0|LINK|mutability|MUTABLE|url|http://openjdk.java.net/projects/lambda/|1|http://www.jcp.org/en/jsr/proposalDetails?id=335^0|0|1A|5|20|5|0|0|0|8|0|9|7|1|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@$D|Z|E|10|F|G]|$D|11|E|12|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|13|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|14|8|@]|9|@$D|15|E|16|1|17]|$D|18|E|19|1|1A]]|A|$]]|$1|L|3|M|5|6|7|1B|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]|V|$5|Q|R|S|A|$T|W]]]]

A closure is a block of code that can be referenced (and passed around) with access to the variables of the enclosing scope. 

Since Java 1.1, anonymous inner class have provided this facility in a highly verbose manner. They also have a restriction of only being able to use <code>final</code> (and definitely assigned) local variables. (Note, even non-<code>final</code> local variables are in scope, but cannot be used.)

Java SE 8 is intended to have a more concise version of this for single-method interfaces*, called "lambdas". Lambdas have much the same restrictions as anonymous inner classes, although some details vary randomly.

Lambdas are being developed under <a href="http://openjdk.java.net/projects/lambda/" rel="noreferrer">Project Lambda</a> and <a href="http://www.jcp.org/en/jsr/proposalDetails?id=335" rel="noreferrer">JSR 335</a>.

*Originally the design was more flexible allowing Single Abstract Methods (SAM) types. Unfortunately the new design is less flexible, but does attempt to justify allowing implementation within interfaces.

blocks|key|1162343|text|有关闭包的定义，请参见这个wiki页面。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1162344|和这个用Java+8：http://mail.openjdk.java.net/pipermail/lambda-dev/2011-September/003936.html关闭的页面|1162345|还请看这个Q&A：Java+7中的闭包|1162346|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Closure_%2528computer_science%2529|1|http://mail.openjdk.java.net/pipermail/lambda-dev/2011-September/003936.html|2|https://stackoverflow.com/questions/233579/closures-in-java-7^0|B|8|0|0|B|24|1|0|9|A|2|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@$A|Y|B|Z|1|10]]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|H|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]|R|$5|K|L|M|C|$N|S]]]]

Please see <a href="http://en.wikipedia.org/wiki/Closure_%28computer_science%29" rel="nofollow noreferrer">this wiki page</a> for definition of closure.

And this page for closure in Java 8: <a href="http://mail.openjdk.java.net/pipermail/lambda-dev/2011-September/003936.html" rel="nofollow noreferrer">http://mail.openjdk.java.net/pipermail/lambda-dev/2011-September/003936.html</a>

Also look at this Q&amp;A: <a href="https://stackoverflow.com/questions/233579/closures-in-java-7">Closures in Java 7</a>

blocks|key|2719495|text|Java闭包将成为J2SE+8的一部分，并将于2012年底发布。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2719496|Java+8的闭包支持包括Lambda表达式的概念、方法引用、构造器引用和默认方法。|2719497|有关此项目的更多信息和工作示例，请访问：http://amitrp.blogspot.in/2012/08/at-first-sight-with-closures-in-java.html|offset|length|2719498|entityMap|0|LINK|mutability|MUTABLE|url|http://amitrp.blogspot.in/2012/08/at-first-sight-with-closures-in-java.html^0|0|0|K|23|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Java Closures are going to be a part of J2SE 8 and is set to be released by the end of 2012.

Java 8's closures support include the concept of Lambda Expressions, Method Reference, Constructor Reference and the Default Methods.

For more information and working examples for this please visit: <a href="http://amitrp.blogspot.in/2012/08/at-first-sight-with-closures-in-java.html" rel="noreferrer">http://amitrp.blogspot.in/2012/08/at-first-sight-with-closures-in-java.html</a>

blocks|key|1162588|text|是的，闭包(Lambda表达式)是即将发布的Java+8的新特性。您可以从以下链接获得有关此问题的更多信息：http://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1162589|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html^0|1I|21|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Yes,Closure (Lambda Expressions) is the new feature with the upcoming Java SE 8 release.
You can get more info about this from the below link:
<a href="http://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html" rel="nofollow">http://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html</a>

blocks|key|2719504|text|Java+5、6和7的闭包实现|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2719505|http://mseifed.blogspot.se/2012/09/bringing-closures-to-java-5-6-and-7.html|offset|length|2719506|它包含了人们所能要求的一切..。|2719507|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|23|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@$D|Q|E|R|1|S]]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|C]]]]

A closure implementation for Java 5, 6, and 7

<a href="http://mseifed.blogspot.se/2012/09/bringing-closures-to-java-5-6-and-7.html" rel="nofollow">http://mseifed.blogspot.se/2012/09/bringing-closures-to-java-5-6-and-7.html</a>

It contains all one could ask for...

What is closure? It is supposed to be included in Java 7. (Closures were discussed for inclusion in Java 7, but in the end were not included. -ed) Can anyone please provide me with some reliable references from where I can learn stuff about closures?

Closure in Java 7

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

教程

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云智能顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

EdgeOne AI 安全实战专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

聚焦“写作效率、视觉美观与运行性能”三方面进行全面升级，为您提供更高效、稳定的创作环境

社区富文本&Markdown编辑器全新改版上线，欢迎大家体验!

诚挚邀请您参与本次调研，分享您的真实使用感受与建议。您的反馈至关重要，感谢您的支持与参与！

社区新版编辑器体验调研

什么是结束？它应该包含在Java 7中。(讨论了包含在Java 7中的闭包，但最终没有包括闭包。( -ed)谁能给我提供一些可靠的参考资料，我可以从那里了解有关闭包的东西？

问Java 7中的闭包
EN

回答 6

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Java 7中的闭包EN

回答 6

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Java 7中的闭包
EN