public class Time3 {
    
    private int hour;
    private int minute;
    private int second;

    public void setTime(int hour, int minute, int second) {

        if (hour < 0 || hour >= 24 || minute < 0 || minute >= 60 ||
            second < 0 || second >= 60) {
            throw new IllegalArgumentException(
                "hour, minute and/or second was out of range");
        }
        this.hour = hour;
        this.minute = minute;
        this.second = second;
    }
}

public String toUniversalString() {
    return String.format("%02d:%02d:%02d", hour, minute, second);
}

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




second file




public class Time1Test {
   public static void main(String[] args) {
      Time1 time = new Time1();
      displayTime("After time object is created", time);
      System.out.println();
      time.setTime(13, 27, 6);
      displayTime("After calling setTime", time);
      System.out.println();
   }
}



// attempt to set time with invalid values
try {
time.setTime(99, 99, 99); // all values out of range
}
catch (IllegalArgumentException e) {
System.out.printf("Exception: %s%n%n", e.getMessage());
}
// display time after attempt to set invalid values
displayTime("After calling setTime with invalid values", time);
// displays a Timel object in 24-hour and 12-hour formats
private static void displayTime(String header, Timel t) {
System.out.printf("%s%nUniversal time: %s%nStandard time: %s%n",
header, t.toUniversalString(), t.toString());
}