多线程案例

1、

写两个线程，一个线程打印1-52，另一个线程打印字母A-Z。

打印顺序为12A34B56C……5152Z。

学习线程之间的通信协调关系。

代码

线程类Thread01

package com.ljq.test;

public class Thread01 implements Runnable {
private Object obj;

public Thread01(Object obj) {
this.obj = obj;
}

public void run() {
synchronized (obj) {
for (int i = 1; i <= 26; i++) {
System.out.print(2 * i - 1 + "");
System.out.print(2 * i + "");
obj.notifyAll();
try {
obj.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}

                

线程类Thread02

package com.ljq.test;

public class Thread02 implements Runnable {
private Object obj;

public Thread02(Object obj) {
this.obj = obj;
}

public void run() {
synchronized (obj) {

for (char c = 'A'; c <= 'Z'; c++) {
System.out.print(c + "");
obj.notifyAll();
try {
obj.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}

}
}
}

}

                     

测试类ThreadTest

package com.ljq.test;

public class ThreadTest {

public static void main(String[] args) {
Object obj = new Object();
Thread01 t1 = new Thread01(obj);
Thread02 t2 = new Thread02(obj);
Thread thread01 = new Thread(t1);
Thread thread02 = new Thread(t2);
thread01.start();
thread02.start();
}

}