public class TestClockDisplay
{
    public TestClockDisplay()
    {
    }

    public void test()
    {
        ClockDisplay clock = new ClockDisplay();

        clock.setTime(21,59);
        System.out.println(clock.getTime());

        clock.setTime(12,39);
        System.out.println(clock.getTime());

        clock.setTime(14,89);
        System.out.println(clock.getTime());

        clock.setTime(0,0);
        System.out.println(clock.getTime());
    }
}