/**
* @param args
* 三个老师发60张试卷,随机发
*/
public class Test02 {
public static void main(String[] args) {
new Paper().start();
new Paper().start();
new Paper().start();
}
}
// 创建试卷实现runnable接口
class Paper extends Thread {
private int num = 60;
@Override
public void run() {
while (true) {
synchronized (Paper.class) {