Android Java - how to count down, onTick and onFinish

countdownTimer.java

new CountDownTimer(10000, 1000) {
    @Override
    public void onTick(final long inL) {

        // countdown is counting down every 1000 milliseconds = 1sec
    }

    @Override
    public void onFinish() {

        // counter is finished after 10000 millieseconds = 10sec
    }
}.start();