Java多线程练习

时间:2022-12-29 17:50:04
国际惯例,先贴出代码
package jiankong;import java.util.Date;public class jiankong {public static void main(String [] args) {MyThread thread = new MyThread();thread.start();try {Thread.sleep(10000);System.out.println("捕获未成功!");Thread.interrupted();}catch (InterruptedException e) {System.out.println("主线程已死!");}//这里不明白catch的含义    System.out.println("检测主线程是否死亡!");//thread.interrupt();}}class MyThread extends Thread {boolean flag = true;//Thread flag = false;public void run() {while (flag) {System.out.println("+++ " + new Date() + "+++");try {sleep(1000);} catch (InterruptedException e) {return;}}}}

最近写的,不过多线程好多生疏的地方啊,就上面的这个例子,原来的代码到是会,然后我修改了下,就再想,既然Thread是主线程,那我能不能中断主线程呢,我就在catch那里测试,按道理来说,如果主线程被中断的话,应该会执行的啊,可是调试的时候就是不出。。。。郁闷!!!自学果然吃力不讨好

后面附上之前练习的一个小程序:

public class hello {
public static void main(String args[]) {
runner r = new runner();
//r.run();
Thread t = new Thread(r);
t.start();

for (int i = 0; i < 100; i++) {
System.out.println("main " + i);
}
}
}
//class runner {
class runner implements Runnable {
public void run() {
for (int i = 0; i < 100; i++) {
System.out.println("runner " + i);
}
}
}