breakloop3.java

来自「180个针对Java初学者的简单实例180个针对Java初学者的简单实例180个」· Java 代码 · 共 24 行

//使用标签退出循环示例
class breakloop3 { 
  public static void main(String args[]) { 
    int i;    
    for(i=1; i<=3; i++) {
one:    {
two:    {
three:  {
            System.out.println("i is " + i+" now\n");
            if(i==1) break one;
            if(i==2) break two;
            if(i==3) break three;
            System.out.println("won't print");    
          }
          System.out.println("block three finished");
        }
        System.out.println("block two finished");
      }
      System.out.println("block one finished");
    }
    System.out.println("all is over");
  } 
}