Java Thread isDaemon()方法

Thread類的isDaemon()方法檢查線程是否是守護程式線程。 如果線程是守護進程線程，則此方法將返回true，否則返回false。

語法

public final boolean isDaemon()

返回值

如果線程是守護進程線程，則此方法將返回true，否則返回false。

public class JavaIsDaemonExp extends Thread
{
    public void run()
    {
        //checking for daemon thread
        if(Thread.currentThread().isDaemon())
        {
            System.out.println("daemon thread work");
        }
        else
        {
            System.out.println("user thread work");
        }
    }
    public static void main(String[] args)
    {
        // creating three threads
        JavaIsDaemonExp t1=new JavaIsDaemonExp();
        JavaIsDaemonExp t2=new JavaIsDaemonExp();
        JavaIsDaemonExp t3=new JavaIsDaemonExp();
        // set user thread t1 to daemon thread
        t1.setDaemon(true);
        //starting all the threads
        t1.start();
        t2.start();
        t3.start();
    }
}

執行上面示例代碼，得到以下結果：

daemon thread work
user thread work
user thread work