Bonuschallenge.java

// Create a method called getDurationString with two parameters, first parameter minutes and 2nd parameter seconds.

// You should validate that the first parameter minutes is >= 0.

// You should validate that the 2nd parameter seconds is >= 0 and <= 59. The method should return Invalid value in the method if either of the above are not true.

// If the parameters are valid then calculate how many hours minutes and seconds equal the minutes and seconds passed to this method and return that value as string in format gXXh YYm ZZsh where XX represents a number of hours, YY the minutes and ZZ the seconds.

// Create a 2nd method of the same name but with only one parameter seconds.

// Validate that it is >= 0, and return gInvalid valueh if it is not true.

// If it is valid, then calculate how many minutes are in the seconds value and then call the other overloaded method passing the correct minutes and seconds calculated so that it can calculate correctly.

// Call both methods to print values to the console.

// Tips:

// Use int or long for your number data types is probably a good idea.

// 1 minute = 60 seconds and 1 hour = 60 minutes or 3600 seconds.

// Methods should be static as we have used previously.

// Bonus:

// For the input 61 minutes output should be 01h 01m 00s, but it is ok if it is 1h 1m 0s (Tip: use if-else)

// Create a new console project and call it SecondsAndMinutesChallenge



public class Bonuschallenge {
    private static final String INVALID_VALUE_MESSAGE = "Invalid value";

    public static void main(String[] args) {

        System.out.println(getDurationString(65, 45));
        System.out.println(getDurationString(3945L));
        System.out.println(getDurationString(-41));
        System.out.println(getDurationString(65, 9));
    }

    private static String getDurationString(long minutes, long seconds) {
        if((minutes < 0) || (seconds <0) || (seconds > 59)) {
            return INVALID_VALUE_MESSAGE;
        }

        long hours = minutes / 60;
        long remainingMinutes = minutes % 60;

        String hoursString = hours + "h";
        if(hours < 10) {
            hoursString = "0" + hoursString;
        }

        String minutesString = remainingMinutes + "m";
        if(remainingMinutes < 10) {
            minutesString = "0" + minutesString;
        }

        String secondsString = seconds + "s";
        if(seconds < 10) {
            secondsString = "0" + secondsString;
        }


        return hoursString + " " + minutesString + " " + secondsString + "";
    }

    private static String getDurationString(long seconds) {
        if(seconds < 0) {
            return INVALID_VALUE_MESSAGE;
        }

        long minutes = seconds / 60;
        long remainingSeconds = seconds % 60;

        return getDurationString(minutes, remainingSeconds);
    }
}