labeldemo.java

来自「JAVA的一些基础教程」· Java 代码 · 共 48 行

public class LabelDemo{
	public static void demo1(){
		System.out.println("Demo1");
		for(int i=0; i< 2; i++){
			System.out.println("外循环i = " + i);
			for(int j = 0; j < 10 ; j++){
				if(j == 3) break;
				System.out.println("\t\t内循环j = " + j);
			}
		}
		System.out.println();
	}

	public static void demo2(){
		System.out.println("Demo2");
		int i =0;
abc:		while(i < 500){
			System.out.println("外循环i = " + i);
			for(int j =0; j < 40; j++){
				System.out.println("\t\t内循环j = " + j);
				if(j == 3) break abc;
			}
		}
		System.out.println();
	}

	public static void demo3(){
		System.out.println("Demo3");
		int i = 0;
abc:		do{
			int j = 0;		
			i++;
			while(j < 3){
				j++;
				if(j == 2) continue abc;
				System.out.println("\t\t内循环j = " + j);
			}
			System.out.println("外循环i = " + i);
		}while( i < 3);
	}

	public static void main(String arg[]){
		demo1();
		demo2();
		demo3();
	}
}