jigsaw wrote:
check javadoc of wait(long) and interrupt() of java.lang.Thread

    public interface Job {
        public boolean execute();
    }
    class JobRunner implements Runnable {
        Job job;
        public JobRunner(Job job) {
            this.job = job;
        }
        
        public void run() {
            job.execute();  //注意：job的execute()方法执行时间是不可定的，
            //可能很长，甚至没有返回，
            //如何在JobRunner级别来控制job.execute()方法运行时间。
            //请各位ggjj帮忙看看.
        }
    }

public void run() {
  final long timeout = XXX;

  final Thread currThread = Thread.currentThread();
  final Timer timer = new Timer();
  
  TimerTask task = new TimerTask() {
    public void run() {
      if(currThread.isAlive())
        currThread.interrupt();
      
      timer.cancel();
    }
  };
  timer.schedule(task, timeout, 1);
  
  job.execute();
}

public Manager implements Job{
 public Manager(){
//初始化
}
public boolean execute(){
//你需要执行的代码；
}
}

class JobRunner implements Runnable {
private Job job;
private Thread thread;
public JobRunner(Job job) {
this.job = job;
thread = new Thread(this);//自动启动线程
thread.start();
}

public void run() {
job.execute();
}
public static void main(String [] args){
Job onejob = new Manager();
JobRuner = new JobRunner(onejob);
}
}

final long duration = 3000L; // wait for 3 sec
final Thread work = new Thread(new JobRunner(new Manager()));

Thread timer = new Thread(new Runnable() {
    public void run() {
        try {
         wait(duration);
       } catch (InterrupttedException e) {
         // ignore?
       }
        work.interrupt(); 
       // make sure the Manager class does have fail-save on InterupttedException 

    }
});

work.start(); 
timer.start();