How long a thread has been running

[Adamu Yifru]

Is there a way to tell how long a thread has been running?
thanks in advance.

[Ernest Friedman-Hill]

Hi,
Only by recording the time at which you started it. If it's just some random thread, I don't believe there's any way to tell.

[Vinod Chandana]

Originally posted by Adamu Yifru:
Is there a way to tell how long a thread has been running?
thanks in advance.

hi,
In a way Ernest is right. But probably it is possible to try to find the execution time of a thread. Look at the code I have attached. Let me tell you that this is not really accurate. But it kinda works. Hope this helps.
Regards,
Vinod.
Make me a cowboy!!!

public class ThreadTest {
    public static void main(String[] args) {
        VinThread myThread = new VinThread();
        myThread.setTime();
        myThread.start();
        System.out.println(myThread.getTime());
        try{
            myThread.join();
        }catch(Exception e){
            e.printStackTrace();
        }
        System.out.println(myThread.getTime());
    }
    
}

public class VinThread extends Thread{
    
    volatile long startTime;
    volatile long endTime;
    /** Creates a new instance of VinThread */
    public VinThread() {
    }
    public void setTime(){
        startTime = System.currentTimeMillis();
    }
    
    public long getTime(){
        if(this.isAlive()) return(System.currentTimeMillis() - startTime);
        else return endTime;
    }
    
    public void run(){
        long time1 = System.currentTimeMillis();
        for(int i = 0; i < 99999; i++);
        try{
            sleep(10);
        }
        catch(Exception e){
            e.printStackTrace();
        }
        for(int i = 0; i < 99999; i++);
        endTime = System.currentTimeMillis() - startTime;
        System.out.println("Total Exec time :"+ (System.currentTimeMillis() - time1));
    }
}