Java标签用法

本文介绍了Java标签用法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

通过java好文章，我发现这样的代码完美编译。

Somewhere going through java good articles, I found that such code compiles perfectly.

public int myMethod(){ www.google return 1; }

说明 http： word将被视为标签， // www.google 作为评论

description says that http: word will be treated as label and //www.google as comment

我没有得到Java Label如何在循环外使用？ 在什么情况下应该使用Java Label外部循环？

I am not getting how Java Label is useful outside loop? Under what situation Java Label outside loop should be used?

推荐答案

以下是在Java中使用标签的一个好处：

Here is one benefit of using labels in Java:

block: { // some code if(condition) break block; // rest of code that won't be executed if condition is true }

嵌套循环的另一种用法：

Another usage with nested-loops:

outterLoop: for(int i = 0; i < 10; i++) { while(condition) { // some code if(someConditon) break outterLoop; // break the for-loop if(anotherConditon) break; // break the while-loop // another code } // more code }

或：

outterLoop: for(int i = 0; i < 10; i++) { while(condition) { // some code if(someConditon) continue outterLoop; // go to the next iteration of the for-loop if(anotherConditon) continue; // go to the next iteration of the while-loop // another code } // more code }