前台线程和后台线程

package com.cavaness.quartzbook.chapter3;

public class Test {
public static void main(String[] args) {
// 默认情况下，线程是前台线程，虽然主线程结束了，子线程没结束，那成整个进程（程序）就不会结束
Thread thread = new TestThread();
thread.start();

System.out.println("Method main:" + Thread.currentThread().getName());
}
}

package com.cavaness.quartzbook.chapter3;

public class TestThread extends Thread {
public void run() {
while (true) {
System.out.println("Method run:" + Thread.currentThread().getName());
}
}
}

package com.cavaness.quartzbook.chapter3;

public class Test {
public static void main(String[] args) {
// 设置线程是后台线程，主线程结束了，子线程虽然没结束，整个进程（程序）也会结束
Thread thread = new TestThread();
thread.setDaemon(true);
thread.start();

System.out.println("Method main:" + Thread.currentThread().getName());
}
}

package com.cavaness.quartzbook.chapter3;

public class TestThread extends Thread {
public void run() {
while (true) {
System.out.println("Method run:" + Thread.currentThread().getName());
}
}
}