1.使用Thread.stop()？

   极力不推荐此方式，此函数不安全且已废弃，具体可参考Java API文档

2.设置终止标识，例如：

import static java.lang.System.out;public class TestThread extends Thread{    private boolean terminationFlag;    public void run()    {        for (int i = 0; i != 10000000; ++i)        {            if (terminationFlag)                break;            out.println(i + 1);        }    }    public void terminate()    {        terminationFlag = true;    }}

3.使用Thread.interrupt()

   interrupt()函数本身并不能终止线程，需要做一些处理方可终止线程

   ①若线程任务中包含Object.wait()、Thread.sleep(long)等可能引发InterruptedException的函数，则在调用interrupt()后会抛出InterruptedException

import static java.lang.System.out;import java.util.logging.Logger;import java.util.logging.Level;public class TestThread extends Thread{    private static final Logger LOGGER = Logger.getLogger("TestThread");    public void run()    {        for (int i = 0; i != 10000000; ++i)        {            try            {                Thread.sleep(100);                out.println(i + 1);            }            catch (InterruptedException ex)            {                LOGGER.log(Level.SEVERE, null, ex);                break;  //执行break后退出循环，run()也将执行完毕            }        }    }}

②若线程任务中不包含可能引发InterruptedException的函数，则可将Thread.isInterrupted()的返回值作为终止标识

import static java.lang.System.out;public class TestThread extends Thread{    public void run()    {        for (int i = 0; i != 10000000; ++i)        {            if (isInterrupted())                break;            out.println(i + 1);        }        out.println("TestThread.run() will be finished");    }}