package com.time; public class Timecalculation { public static void main(String[]args) { System.out.println(Calculation(23,56)); } public static String Calculation(long minutes,long seconds) { if(minutes<0 || seconds<0 || seconds>59) { return "Invalid value"; } long hours = minutes/60; long remMinutes = minutes % 60; return hours + "h" + remMinutes + "m" + seconds + "s"; } }