正确结束Java线程的方法

public class MyThread implements Runnable{
private volatile boolean isCancelled;
public void run(){
while(!isCancelled){
//do something
}
}
public void cancel(){ isCancelled=true; }
}

public class InterruptedExample {
public static void main(String[] args) throws Exception {
InterruptedExample interruptedExample = new InterruptedExample();
interruptedExample.start();
}
public void start() {
MyThread myThread = new MyThread();
myThread.start();
try {
Thread.sleep(3000);
myThread.cancel();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private class MyThread extends Thread{
@Override
public void run() {
while (!Thread.currentThread().isInterrupted()) {
try {
System.out.println("test");
Thread.sleep(1000);
} catch (InterruptedException e) {
System.out.println("interrupt");
//抛出InterruptedException后中断标志被清除，标准做法是再次调用interrupt恢复中断
Thread.currentThread().interrupt();
}
}
System.out.println("stop");
}
public void cancel(){
interrupt();
}
}
}

@throws InterruptedException
if any thread has interrupted the current thread. 
The interrupted status of the current thread is 
cleared when this exception is thrown.
public static native void sleep(long millis) throws InterruptedException;

public class InterruptByFuture {
public static void main(String[] args) throws Exception {
ExecutorService es = Executors.newSingleThreadExecutor();
Future<?> task = es.submit(new MyThread());
try {
//限定时间获取结果
task.get(5, TimeUnit.SECONDS);
} catch (TimeoutException e) {
//超时触发线程中止
System.out.println("thread over time");
} catch (ExecutionException e) {
throw e;
} finally {
boolean mayInterruptIfRunning = true;
task.cancel(mayInterruptIfRunning);
}
}
private static class MyThread extends Thread {
@Override
public void run() {
while (!Thread.currentThread().isInterrupted()) { 
try {
System.out.println("count");
Thread.sleep(1000);
} catch (InterruptedException e) {
System.out.println("interrupt");
Thread.currentThread().interrupt();
}
}
System.out.println("thread stop");
}
public void cancel() {
interrupt();
}
}
}