Time Code in Java

Question

I am trying to create a code that calls the system time and updates it every minute. Can anybody give me an example that will steer me in the right direction? thanks

Answer 1

I think that you're looking for a Timer. It can schedule a task such as updating anything every minute.

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public class MyScheduledTask extends TimerTask{
    public void run(){
        System.out.println("Message printed every minute");
    }
}

public class Main{
    public static void main(String... args){
        Timer timer = new Timer();
        timer.schedule(new MyScheduledTask(), 0, 60*1000);
        //Do something that takes time 
    }
}

---

For the current system time you can use System.currentTimeMillis().

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Resources :

• javadoc - Timer
• javadoc - System.currentTimeMillis()

Answer 2

If you were just looking to create a timer you could create a Thread to execute every second within an infinite loop

public class SystemTime extends Thread {

    @Override
    public void run(){
        while (true){
            String time = new SimpleDateFormat("HH:MM:ss").format(Calendar.getInstance().getTime());

            System.out.println(time);
            try{
                Thread.sleep(1000);
            } catch (InterruptedException ie){
                return;
            }
        }
    }
}