public class TestThread {

    private Thread thread1;

    boolean flag = false;//加个标志位



    public static void main(String[] args) {

        TestThread t = new TestThread();

        t.createTread1();

    }

    /*

     * 启动线程

     */

    public void createTread1(){

        thread1 = new Thread(new ThreadI());

        thread1.start();

    }

    /*

     * 判断线程是否死亡,重启线程

     */

    public void resetThread1(){

        System.out.println("是否存活: "+thread1.isAlive());

        if(flag) //用标志位判断

        {

            createTread1();

            falg = false; //创建好后再置回false；以便下次再用

        }

    }

    /*

     * 伺服线程

     */

    class ThreadI implements Runnable {

        private int temp = 0;

        public void run() {

            try{

                while (true) {

                    try {

                        if(temp>=10)

                        throw new RuntimeException();

                        System.out.println("------------循环显示中---------");

                        Thread.sleep(2000);

                        temp++;

                    } catch (Exception e) {

                        break;

                    }

                }

            }finally{

                System.out.println("后判断 是否存活");

                flag = true;// 结束之前把标志位置true

                //try {

                //    Thread.currentThread().join();

                //} catch (InterruptedException e) {

                //    e.printStackTrace();

                //}

                resetThread1();

            }

        

        }



    }

}

	private Thread thread1;

 

	public static void main(String[] args) {

		TestThread t = new TestThread();

		t.createTread1();

	}

	/*

	 * 启动线程

	 */

	public void createTread1(){

		thread1 = new Thread(new ThreadI());

		thread1.start();

	}

	/*

	 * 判断线程是否死亡,重启线程

	 */

	public void resetThread1(){

		thread1=null;

    	createTread1();

    }

	/*

	 * 伺服线程

	 */

	class ThreadI implements Runnable {

        private int temp = 0;

		public void run() {

			try{

				while (true) {

					try {

						if(temp>=10)

						throw new RuntimeException();

						System.out.println("------------循环显示中---------");

						Thread.sleep(2000);

						temp++;

					} catch (Exception e) {

						break;

					}

				}

			}finally{

				System.out.println("后判断 是否存活");

				resetThread1();

			}

		

		}



	}

}