package thread;

class MyThread4 implements Runnable{

boolean flag;

@Override

public void run() {

// TODO Auto-generated method stub

while (true) {

if(flag) {

Thread.yield();

} else {

System.out.println(Thread.currentThread().getName()+"실행");

for ( int i = 0 ; i <= 100000000 ; i ++) {

}

}

}

}

}

public class ThreadYieldTest {

public static void main(String[] args) {

// TODO Auto-generated method stub

MyThread4 obj = new MyThread4();

Thread t1 = new Thread (obj);

t1.setName("t1");

obj.flag = false;

t1.setDaemon(true);//데몬쓰레드로 변경(메인쓰레드가 종료되면 같이 종료되는 쓰레드)

t1.start();

MyThread4 obj2 = new MyThread4();

Thread t2 = new Thread(obj2);

t2.setName("t2");

obj2.flag = false;

t2.setDaemon(true);

t2.start();

for ( int i = 1; i<=6; i++) {

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

e.printStackTrace();

// TODO: handle exception

}

obj.flag = !obj.flag;

obj2.flag = !obj2.flag;

}

}

}