public class TestJoin
{
public static void main(String[] args)
{
Thread t1 = new MyThread(“线程1”);
Thread t2 = new MyThread(“线程2”);
Thread t3 = new MyThread(“线程3”);
try
{
//t1先启动
t1.start();
t1.join();
//t2
t2.start();
t2.join();
//t3
t3.start();
t3.join();
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
class MyThread extend Thread{
public MyThread(String name){
setName(name);
}
@Override
public void run()
{
for (int i = 0; i < 5; i++)
{
System.out.println(Thread.currentThread().getName()+": "+i);
try
{
Thread.sleep(100);
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
}
还有一种方式，在t3开始前join t2，在t2开始前join t1
public class TestJoin2
{
public static void main(String[] args)
{
final Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
System.out.println("t1");
}
});
final Thread t2 = new Thread(new Runnable() {
@Override
public void run() {
try {
//引用t1线程，等待t1线程执行完
t1.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("t2");
}
});
Thread t3 = new Thread(new Runnable() {
@Override
public void run() {
try {
//引用t2线程，等待t2线程执行完
t2.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("t3");
}
});
t3.start();
t2.start();
t1.start();
}
}
梅花香自古寒来
