我不懂 為甚麼調用了 join就變成無限迴圈了
package zh.codegym.task.task16.task1622;
/*
连续线程
*/
public class Solution {
public volatile static int COUNT = 4;
public static void main(String[] args) throws InterruptedException {
for (int i = 0; i < COUNT; i++) {
SleepingThread.currentThread().join();
new SleepingThread();
}
}
public static class SleepingThread extends Thread {
private static volatile int threadCount = 0;
private volatile int countdownIndex = COUNT;
public SleepingThread() {
super(String.valueOf(++threadCount));
start();
}
public void run() {
while (true) {
System.out.println(this);
if (--countdownIndex == 0) break;
try {
Thread.sleep(10);//在此编写你的代码
} catch (InterruptedException e) {
System.out.println("线程已中断");
}
}
}
public String toString() {
return "#" + getName() + ": " + countdownIndex;
}
}
}