用java写两个线程,一个线程打印1-52,另一个线程打印字母A-Z
作者:互联网
public class test002 {
// 测试
public static void main(String[] args) {
Object obj = new Object();
// 启动两个线程
Thread1 t1 = new Thread1(obj);
Thread2 t2 = new Thread2(obj);
t1.start();
t2.start();
}
}
class Thread1 extends Thread {
private Object obj;
public Thread1(Object obj) {
this.obj = obj;
}
public void run() {
// 加锁
synchronized (obj) {
// 打印1-52
for (int i = 1; i < 53; i++) {
System.out.print(i);
if (i % 2 == 0) {
// 不能忘了唤醒其它线程
obj.notifyAll();
try {
obj.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
}
class Thread2 extends Thread {
private Object obj;
public Thread2(Object obj) {
this.obj = obj;
}
public void run() {
synchronized (obj) {
// 打印A-Z
for (int i = 0; i < 26; i++) {
System.out.print((char) ('A' + i));
// 不能忘了唤醒其它线程
obj.notifyAll();
try {
obj.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
//技术有待完善 有时间把新学的另一个比较完善的程序发出来!
标签:打印,obj,Object,52,线程,Thread2,Thread1,public 来源: https://blog.51cto.com/u_12198094/2698050