java多线程实例

public class ThreadTest {
public static void main(String[] args) {
MyThread1 thread1 = new MyThread1();
thread1.start();
MyThread2 thread2 = new MyThread2();
Thread th = new Thread(thread2);
th.start();
}
}
class MyThread1 extends Thread {
public void run() {
while (true) {
System.out.println("this is thread1.");
try {
Thread.sleep(500);
} catch (Exception e) {
}
}
}
}
class MyThread2 implements Runnable {
public void run() {
while (true) {
System.out.println("this is thread2.");
try {
Thread.sleep(500);
} catch (Exception e) {
}
}
}
}