|NO.Z.00099|——————————|BigDataEnd|——|Java&多线程.V11|——|Java.v11|线程等待|
一、线程的等待
package com.yanqi.task18;
public class ThreadJoinTest extends Thread {
@Override
public void run() {
// 模拟倒数10个数的效果
System.out.println("倒计时开始...");
for (int i = 10; i > 0; i--) {
System.out.println(i);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println("新年快乐!");
}
public static void main(String[] args) {
ThreadJoinTest tjt = new ThreadJoinTest();
tjt.start();
// 主线程开始等待
System.out.println("主线程开始等待...");
try {
// 表示当前正在执行的线程对象等待调用线程对象,也就是主线程等待子线程终止
//tjt.join();
tjt.join(5000); // 最多等待5秒
} catch (InterruptedException e) {
e.printStackTrace();
}
//System.out.println("终于等到你,还好没放弃!");
System.out.println("可惜不是你,陪我到最后!");
}
}
二、编译打印
D:\JAVA\jdk-11.0.2\bin\java.exe "-javaagent:D:\IntelliJIDEA\IntelliJ IDEA 2019.3.3\lib\idea_rt.jar=50741:D:\IntelliJIDEA\IntelliJ IDEA 2019.3.3\bin" -Dfile.encoding=UTF-8 -classpath E:\NO.Z.10000——javaproject\NO.H.00001.javase\javase\out\production\javase com.yanqi.task18.ThreadJoinTest
主线程开始等待...
倒计时开始...
10
9
8
7
6
可惜不是你,陪我到最后!
5
4
3
2
1
新年快乐!
Process finished with exit code 0
Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart
——W.S.Landor
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