threadjointest.java

来自「用java编写的有关线程测试的程序」· Java 代码 · 共 34 行

public class ThreadJoinTest {
    public static void main(String args[ ]) throws Exception{
	
	int i=0;
	
	Hello t = new Hello( );
		
	t.start( );
	
	while( true){
		System.out.println("Good Morning"+i++);
		
		if (i == 2 && t.isAlive()){
		   	System.out.println("Main waiting for Hello!");
		   	t.join( );  //等待t运行结束
		   	} 
		if (i==5)  break ;
		}
	
	}
}

class Hello extends Thread{
    int i ;
    public void run( ){
	while( true){
		System.out.println("Hello"+i++);
		
		if (i==5)  break ;
		}
    	}
  }