PBO_8.1

/**
 * Program 8.1 untuk menampilkan waktu dalam AM atau PM (Time1).
 *
 * @author (srachmadbudi)
 * @version (1.0)
 */
public class Time1
{
    // deklarasi variables
    private int hour;
    private int minute;
    private int second;

    //atur waktu menggunakan UTC, berikan exception jika input invalid
    public void setTime(int h, int m, int s) {
        //validasi waktu
        if ((h>=0&&h<24)&&(m>=0&&m<60)&&(s>=0&&s<60)) {
            hour = h;
            minute = m;
            second = s;
        }else {
            throw new IllegalArgumentException(
                    "hour, minute, and/or second was out of range"
            );
        }
    }

    //konversikan ke string UTC (hh:mm:ss)
    public String toUniversalString() {
        return String.format("%02d:%02d:%02d", hour, minute, second);
    }

    //konversi ke string format standar AM PM
    public String toString(){
        return String.format("%d:%02d:%02d %s",
                ((hour == 0 || hour == 12) ? 12 : hour % 12),
                minute, second, (hour < 12 ? "AM" : "PM"));
    }
}