Question

I want to add a delay in my program using the Thread.sleep(1000) command (so making it stop for 1 second before continuing) but this means I also need to add the throws InterruptedException. However, I’m not sure where to put it.

My code basically looks like this right now:

public static void main(String[] args) {
    Clock myClock = new Clock;   // new clock object.

    while (true) {
        myClock.tick();
    }
}

My other class:

public class Clock {
    // .. some constructors and stuff

    public void tick() {
        secondHand.draw();   // redraws the second hand to update every second
    }

    // .. some more methods and stuff
}

I want to only call the tick() method every 1 second, but I don’t know where I can put the Thread.sleep and throws InterruptedException statements. Any help would be appreciated. Also any input on other ways I can make my clock tick and/or update would be helpful too!

Answer 1

I want to only call the tick() method every 1 second

After the call to tick(), put a sleep on the current thread as follows:

public static void main(String[] args) {
    Clock myClock = new Clock;   // new clock object.

    while (true) {
        myClock.tick();
        // wait for a second.
        try {
            Thread.sleep(1000);
        }
        catch (InterruptedException ie) {
            // Handle the exception
        }
    }
}