Question

TO BE DONE IN JAVA

Your task is to complete the AddTime program so that it takes multiple sets of hours, minutes and seconds
from the user in hh:mm:ss format and then computes the total time elapsed in hours, minutes and seconds. This
can be done using the Time object already given to you.

Tasks:

• Complete addTimeUnit() in AddTime so that it processes a string input in hh:mm:ss format and adds a new Time unit to the ArrayList member variable.
• Complete calculateTotalTime() so that it calculates the total time from the times in the list, does any required conversions of time values and returns a new Time object storing that total time.

Ensure that the returned time values are within these ranges:

- seconds should be between 0 and 60. any value greater than 60 (ie. 80 seconds) should be converted to minutes with leftover seconds in the seconds slot. (ie. for 80 seconds, add 1 to minutes and set seconds to 20).

- minutes should be between 0 and 60, with values greater than 60 converted in the same manner as seconds.

- hours do not have an upper limit and can be left as-is.

You may add whatever methods you wish to the `AddTime` and `Time` classes but do not change the signatures of any existingmethods.

Requested files

AddTime.java

import java.util.ArrayList;

import java.util.Scanner;

public class AddTime {

    private ArrayList<Time> time;

    private Scanner scnr;

   

    public AddTime() {

        time = new ArrayList<>();

        scnr = new Scanner(System.in);

    }

    public String promptInput() {

        String userInput = scnr.next();

        return userInput;

    }

    //Reminder: input format: (hh:mm:ss)

    public void addTimeUnit(String input) {

       //TODO:

    }

    public Time calculateTotalTime() {

        //TODO:

    }

}

Time.java

public class Time {

    private int hours;

    private int minutes;

    private int seconds;

    public Time(int hour, int minute, int second) {

        hours = hour;

        minutes = minute;

        seconds = second;

    }

    public int getHours() {

        return hours;

    }

    public int getMinutes() {

        return minutes;

    }

    public int getSeconds() {

        return seconds;

    }

Answer 1

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Screenshot of the Java code:-

Demonstration and output:-

Creata a main method like this where creating five time instances and adding them

public static void main(String[] args) {
       AddTime addTime = new AddTime();
       addTime.addTimeUnit(addTime.promptInput());
       addTime.addTimeUnit(addTime.promptInput());
       addTime.addTimeUnit(addTime.promptInput());
       addTime.addTimeUnit(addTime.promptInput());
       addTime.addTimeUnit(addTime.promptInput());
       Time t = addTime.calculateTotalTime();
      
       System.out.println(t.getHours() + " " + t.getMinutes() + " " + t.getSeconds()
       );
   }

Java code to copy:-

package timeConverter;

import java.util.ArrayList;
import java.util.Scanner;
public class AddTime {
private ArrayList<Time> time;
private Scanner scnr;

public AddTime() {
time = new ArrayList<>();
scnr = new Scanner(System.in);
}
public String promptInput() {
String userInput = scnr.next();
return userInput;
}
//Reminder: input format: (hh:mm:ss)
public void addTimeUnit(String input) {
   //Processing the input in hh:mm::ss format
String[] timeUnits = input.split(":");
//Converting them to integers
int hours = Integer.parseInt(timeUnits[0]);
int minutes = Integer.parseInt(timeUnits[1]);
int seconds = Integer.parseInt(timeUnits[2]);
//Creating an instance of Time class
Time t = new Time(hours,minutes,seconds);
//Addting the instance to the arraylist
time.add(t);
}
public Time calculateTotalTime() {
   int hours = 0,minutes = 0,seconds = 0;
  
   //Iterating through the times in the arraylist
   for(Time t:time)
   {
       hours += t.getHours();
       minutes += t.getMinutes();
       seconds += t.getSeconds();
   }
  
   minutes += seconds/60;
   seconds = seconds % 60;
  
   hours += minutes/60;
   minutes = minutes % 60;
  
   //Creating a new time object from the values
   Time tot_time = new Time(hours,minutes,seconds);
  
   return tot_time;
}
  

}