JAVA學習筆記(四十)- 守護線程與中斷線程

標籤：中斷線程   守護線程   

守護線程

/* * Daemon線程，即守護線程 * 一般都在後台運行，為其他線程提供服務，不能單獨存在 */public class Test08 {    public static void main(String[] args) {        MyThread8 t1 = new MyThread8("守護線程");        System.out.println("是守護線程嗎？"+t1.isDaemon());        t1.setDaemon(true);        System.out.println("是守護線程嗎？"+t1.isDaemon());        t1.start();        new MyThread8("rubbish");        for (int i = 1; i <= 100; i++) {            System.out.println(Thread.currentThread().getName() + "****" + i);        }    }}class MyThread8 extends Thread {    public MyThread8(String name) {        super(name);        setDaemon(true);        start();    }    @Override    public void run() {        while (true) {            System.out.println(Thread.currentThread().getName() + "進行中記憶體回收！");        }    }}

中斷線程

/* * interrupt()中斷線程 */public class Test09 {    public static void main(String[] args) {        MyThread9 mt = new MyThread9();        Thread thread = new Thread(mt, "first");        thread.start();        for(int i=1;i<=20;i++){            System.out.println(Thread.currentThread().getName() + "***");        }        try {            Thread.sleep(3000);//主線程入睡3秒        } catch (InterruptedException e) {            e.printStackTrace();        }        //中斷線程一的休眠        thread.interrupt();    }}class MyThread9 implements Runnable {    int num = 1;    @Override    public void run() {        while (true) {            if(num==10){                try {                    System.out.println(Thread.currentThread().getName()+"線程即將入睡10秒");                    Thread.sleep(10000);                } catch (InterruptedException e) {                    System.out.println("我會捶醒了。。。。");                    //e.printStackTrace();                }            }            System.out.println(Thread.currentThread().getName() + "***" + num++);        }    }}

JAVA學習筆記(四十)- 守護線程與中斷線程