Question

In Java, create a program and Flowchart, Write a method that converts milliseconds to hours, minutes, and seconds using the following header: public static String convertMillis(long millis) The method returns a string as hours:minutes:seconds. For example, convertMillis(5500) returns a string 0:0:5, convertMillis(100000) returns a string 0:1:40, and convertMillis(555550000) returns a string 154:19:10. Write a test program that prompts the user to enter a long integer for milliseconds and displays a string in the format of hours:minutes:seconds.

Answer 1

Given below is the code for question. Please do rate the answer if it helped. Thank you.

Converter.java
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import java.util.Scanner;

public class Converter {
   public static String convertMillis(long millis) {
       int MILLIS_PER_SEC = 1000;
       int SECS_PER_MIN = 60;
       int MINS_PER_HOUR = 60;
       int hours = 0, mins = 0, secs = 0;
      
       secs = (int)( millis / MILLIS_PER_SEC);
      
       mins = secs / SECS_PER_MIN;
       secs = secs % SECS_PER_MIN;
      
       hours = mins / MINS_PER_HOUR;
       mins = mins % MINS_PER_HOUR;
      
       return hours + ":" + mins + ":" + secs;
   }
  
  
  
   public static void main(String[] args) {
       Scanner scnr = new Scanner(System.in);
       long millis;
       boolean done = false;
      
       while(!done) {
           System.out.print("Enter milliseconds (type 0 to quit): ");
           millis = scnr.nextLong();
           if(millis <= 0)
               done = true;
           else {
               System.out.println(millis + " is " + convertMillis(millis));
           }
       }
      
      
   }
}