java并发的艺术_Java并发编程的艺术（一）

题目1

创建3个线程，让3个线程分别按着顺序打印AAAA，BBBB，CCCC(第一个线程打印AAAA，第二个线程打印BBBB，第一个线程始终在第二个线程之前打印)

代码(该代码为打印3个线程分别打印一次)

public class JoinTest {

public static void main(String[] args) {

Thread prev = Thread.currentThread();

String[] array = {"AAAA","BBBBB","CCCC"};

for(int i = 0;i<3;i++){

Thread thread = new Thread(new MyThread(prev,array[i]),"Thread"+i);

thread.start();

prev = thread;

}

}

}

class MyThread implements Runnable{

private Thread thread;

private String print;

public MyThread(Thread thread,String print){

this.thread = thread;

this.print = print;

}

@Override

public void run() {

try {

thread.join();

for(int i = 0;i<3;i++){

System.out.println(print);

}

} catch (InterruptedException e) {

e.printStackTrace();

}

System.out.println(Thread.currentThread().getName());

}

}

运行结果

AAAA

AAAA

AAAA

Thread0

BBBB

BBBB

BBBB

Thread1

CCCC

CCCC

CCCC

Thread2

题目1 扩展

只创建3个线程，循环打印 题目1 的字符串，并且按照上题中的线程顺序打印