Question

Using Java,

1. Ask for the runner’s name

2. Ask the runner to enter a floating point number for the number of miles ran, like 3.6 or 9.5

3. Then ask for the number of hours, minutes, and seconds it took to run

4. Format the numbers with leading 0's if the pace is 8 minutes and 3 second, it should be 8:03 and for marathon time, if its 1 hour and 15 minutes and 9 seconds, it should be 1:15:09

5. Please read through the whole thing, as the pace table example and fastest man time is listed below...

• A marathon is 26.219 miles

• Pace is how long it takes in minutes and seconds to run 1 mile.
  

Example Input:
What is your first name? // user enters Pheidippides
How far did you run today? 10.6 // user enters 10.6 miles

How long did it take? Hours: 1 // user enters 1 hours

Minutes: 34 // user enters 34 minutes

Seconds: 17 // user enters 17 seconds

Example Output:

Hi Pheidippides
Your pace is 8:53 (minutes: seconds)
At this rate your marathon time would be 3:53:12
Good luck with your training!

After your program tells the user what their pace is, your program will build a table showing the following columns. The pace table should start with the fastest man time which is Eliud Kipchoge with a pace of 4:37 and 2:01:04 and continue in 17 minute and 37 second intervals until you reach the marathon time of the user.

Example: (THE PACE TABLE EXAMPLE)

Pace Table
Pace Marathon
4:37 2:01:04 ←- Eliud Kipchoge
5:17 2:18:41
5:57 2:36:18
6:37 2:53:55
7:18 3:11:32
7:58 3:29:09
8:38 3:46:46
8:53 3:53:12 ← Pheidippides

HINTS

• The table should start with the World Record pace and time which is 4:37, 2:01:04.

• Then continues in 17 minute and 37 second intervals until you reach the marathon time of the user.

• Use a static function to print the pace table, introduce a while loop.

• For the first person it should call a printTable function

  • Example : printTable (pace, “<--- Eliud Kipchoge”)

  • The pace table continues until it reaches the user

  • printTable (myPace, name) something like that  

• For the marathon and pace time, make sure the format has 0’s if the time is 9 seconds, it should be 09.

• Use the printf statement for formatting output (“02d %f%s”)

Answer 1

// Java program to calculate the pace and marathon time and display a pace table

import java.util.Scanner;

public class MarathonPaceTable {

      

       public static void main(String[] args) {

             Scanner scan = new Scanner(System.in);

             String name;

             int hours, mins, secs;

             double distance;

             double marathonDistance = 26.219;

             // input of runner's name

             System.out.print("What is your first name? ");

             name = scan.nextLine();

             // input of miles ran

             System.out.print("How far did you run today? ");

             distance = scan.nextDouble();

             // input of time taken to run the given miles in hours, mins and secs

             System.out.print("How long did it take?\nHours: ");

             hours = scan.nextInt();

             System.out.print("Minutes: ");

             mins = scan.nextInt();

             System.out.print("Seconds: ");

             secs = scan.nextInt();

            

             int paceMins, paceSecs;

             // calculate the total time in seconds

             int totalSecs = (hours*3600) + (mins*60) + secs;

             double pace = totalSecs/distance; // calculate pace in seconds

             // convert pace to mins:secs

             paceMins = (int)(pace/60);

             pace -= (paceMins*60);

             paceSecs = (int)pace;

             // output the name and pace

             System.out.println("Hi "+name);

            

             System.out.printf("Your pace is %d:%02d (minutes: seconds)",paceMins,paceSecs);

            

             // calculate marathon time

             double totalSecsPerMile = totalSecs/distance;

             double marathonTime = marathonDistance*totalSecsPerMile;

            

             int marathonHours = (int)(marathonTime/3600);

             marathonTime -= (marathonHours*3600);         

             int marathonMins = (int)(marathonTime/60);

             marathonTime -= (marathonMins*60);

             int marathonSecs = (int)marathonTime;

            

             // output the marathon time

                          

             System.out.printf("\nAt this rate your marathon time would be %d:%02d:%02d",marathonHours,marathonMins,marathonSecs);

             System.out.println("\nGood luck with your training!");

            

             // set the initial variables for the pace table

             System.out.printf("\n%-5s %-15s","Pace","Marathon");

             int startPaceMin = 4, startPaceSec = 37;

             int startMarathonHr = 2, startMarathonMin = 1, startMarathonSec = 4;

             String paceStr = String.format("%d:%02d %d:%02d:%02d", startPaceMin,startPaceSec,startMarathonHr,startMarathonMin,startMarathonSec);

             printTable (paceStr, "<--- Eliud Kipchoge");

             // loop that continues till we reach the marathon time of user

             while(true)

             {

                    // get the next marathon time

                    startMarathonSec += 37;

                    if(startMarathonSec >= 60)

                    {

                           startMarathonMin++;

                           startMarathonSec = startMarathonSec-60;

                    }

                   

                    startMarathonMin += 17;

                    if(startMarathonMin >= 60)

                    {

                           startMarathonHr++;

                           startMarathonMin = startMarathonMin - 60;

                    }

                   

                    if(startMarathonHr > marathonHours )

                           break;

                    else if(startMarathonHr == marathonHours)

                    {

                           if(startMarathonMin > marathonMins)

                                 break;

                           else if(startMarathonMin == marathonMins)

                                 if(startMarathonSec >= marathonSecs)

                                        break;

                    }

                    // calculate the pace

                    double total = (double)(startMarathonHr*3600 + startMarathonMin*60 + startMarathonSec);

                    double paceTime = total/marathonDistance;

                    startPaceMin = (int)(paceTime/60);

                    paceTime -= (startPaceMin*60);

                    startPaceSec = (int)paceTime;

                    // output the pace

                    paceStr = String.format("%d:%02d %d:%02d:%02d", startPaceMin,startPaceSec,startMarathonHr,startMarathonMin,startMarathonSec);

                    printTable (paceStr, "");

             }

            

             // calculate the pace for the user

             double total = (double)(startMarathonHr*3600 + startMarathonMin*60 + startMarathonSec);

             double paceTime = total/marathonDistance;

             startPaceMin = (int)(paceTime/60);

             paceTime -= (startPaceMin*60);

             startPaceSec = (int)paceTime;

             // output the pace for the user

             paceStr = String.format("%d:%02d %d:%02d:%02d", paceMins,paceSecs,marathonHours,marathonMins,marathonSecs);

             printTable (paceStr, "<- "+name);

            

            

             scan.close();

       }

      

       // method to display the pace and user name in tabular format

       public static void printTable(String pace, String name)

       {

             System.out.printf("\n%-20s%s",pace,name);

       }

}

//end of program

Output: