Question

I have made a class where I am going to store the duration of an event. As you see I have made fields for each but would it be better to save it as seconds and then calculate the hour, minute and seconds on the fly? The add method that I made would be simpler if I did so but are there any disadvantages?

public class Duration {

    private int hours;
    private int minutes;
    private int seconds;

    public Duration(int hours, int minutes, int seconds) {
        setHours(hours);
        setMinutes(minutes);
        setSeconds(seconds);
    }

    public int getHours() {
        return hours;
    }

    public void setHours(int hours) {
        this.hours = hours;
    }

    public int getMinutes() {
        return minutes;
    }

    public void setMinutes(int minutes) {
        this.minutes = minutes;
    }

    public int getSeconds() {
        return seconds;
    }

    public void setSeconds(int seconds) {
        this.seconds = seconds;
    }

    public void add(Duration duration) {

    }
}

Answer 1

It would be much better to use an existing library, such as Joda.