Lab 03 A Later Time Objective: Create a program which prompts the user to enter

Question

Lab 03 A Later Time Objective: Create a program which prompts the user to enter a time in "Hour:Minute" format and then prompts the user to enter a value, in minutes, that wll add to that time. Once the calculation is completed output the resulting time . This is assumed to be in military time, so make sure that there is only 24 hours (0-23), 60 minutes (0-59) in any given time . Take a variety of inputs as long as it is in the format "Hour:Minute o 06:02 and 6:2 are both valid inputs . Output the original time along with the new time Example Dialog: Enter a time in the format hour minute 3:30 Enter a number of minutes to add to this time 50 The time 50 minutes after 3:30 will be 4:20 Hint: Here is an algorithm to solve this problem 1. Read the time. 2. Make a copy of the date. 3. Find the index of the ‘:". 4. Copy the hour part out of the time to a new variable. s. Parse the hour string into a number 6. Next save the minutes into a different variable . Parse the minutes s. Add the new minutes to the recently parsed minutes 9. Adjust the number of minutes to only be 0-59 and add the number of hours, if needed to the hours. Also adjust the hours to be 0-23 if needed. 10. Print the results!

Explanation / Answer

import java.util.Scanner;

/*The java program that read time in hh:mm and prompt

* to enter mins to add then the find time after

* adding time*/

//Timer.java

public class Timer

{

public static void main(String[] args)

{

//declare string variable to read user input time

String usertime;

int addMins;

Scanner scan=new Scanner(System.in);

//read time

System.out.println("Enter a time in the format hour:minute");;

usertime=scan.nextLine();

System.out.println("Enter a number of minutes to add to this time");

addMins=Integer.parseInt(scan.nextLine());

//split by semi colon

String data[]=usertime.split(":");

//get hours and mins

int hours=Integer.parseInt(data[0]);

int mins=Integer.parseInt(data[1]);

//add addMins to mins

mins=mins+addMins;

//adjust time

//checking if mins is greater than 59

if(mins>59)

{

hours++;

mins=mins%60;

}

//print time in hh:mm

System.out.print("The time "+addMins+

" minutes after "+usertime+" will be ");

if(hours<9 && mins<9)

System.out.println("0"+hours+":0"+mins);

else if(mins<9)

System.out.println(hours+":0"+mins);

else if(hours<9)

System.out.println("0"+hours+":"+mins);

else

System.out.println("0"+hours+":"+mins);

}

}

------------------------------------------------------------------------------

Sample Output:

Enter a time in the format hour:minute
3:30
Enter a number of minutes to add to this time
50
The time 50 minutes after 3:30 will be 04:20

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