JAVA Jason, Samantha, Ravi, Sheila, and Ankit are preparing for an upcoming mara

Question

JAVA

Jason, Samantha, Ravi, Sheila, and Ankit are preparing for an upcoming

marathon. Each day of the week they run certain miles and write them into

a notebook. At the end of the week, they would like to know the number

of miles run each day, the total miles for the week, and average miles run

each day. Write a program to help them analyze their data. Your program

must contain parallel arrays: An array to store the names of the runners and a

two-dimensional array of 5 rows and 7 columns to store the number of

miles run by each runner each day. Furthermore, your program must

contain at least the following methods: a method to read and store the

runners name and the number of miles run each day; a method to find the

total miles run by each runner and the average number of miles run each

day; and a method to output the results. (You may assume that the input

data is stored in a file and each line of data is in the following form:

runnerName milesDay1 milesDay2 milesDay3 milesDay4 milesDay5

milesDay6 milesDay7.)

Explanation / Answer

namesMiles.txt (Save this file under D Drive.Then the path of the file pointing to it is D: amesMiles.txt)

Jason 5 6 3 4 8 3 4
Samantha 3 4 5 6 3 4 5
Ravi 3 4 5 6 5 5 5
Sheila 5 5 4 3 4 2 2
Ankit 7 6 5 7 6 5 6

_____________________

RunnerNamesMiles.java

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class RunnerNamesMiles {

   public static void main(String[] args) {
       // Creating String array of size 5
       String names[] = new String[5];

       // Creating a 2-Dimensional array
       int miles[][] = new int[5][7];

       // Declaring variables
       int i = 0, j = 0;
       int totWeek = 0;
       double average = 0.0;

       try {
           // Opening the file
           Scanner sc = new Scanner(new File("D://namesMiles.txt"));

           /*
           * This while loop will read the data from the file and populate
           * them into arrays
           */
           while (sc.hasNext()) {
               j = 0;
               names[i] = sc.next();

               while (sc.hasNextInt()) {
                   miles[i][j] = sc.nextInt();
                   j++;
               }
               i++;
           }
       } catch (FileNotFoundException e) {

           e.printStackTrace();
       }

       // Displaying the Each Runner name and miles run in each day
       System.out.println(" Day1 Day2 Day3 Day4 Day5 Day6 Day7");
       for (i = 0; i < miles.length; i++) {
           System.out.printf("%10s", names[i] + " ");
           for (j = 0; j < miles[0].length; j++) {
               System.out.print(miles[i][j] + " ");
           }
           System.out.println();
       }

       // Displaying total miles ran in each week by each runner and average
       System.out.println(" Name Total Miles Average");
       System.out.println(" ----- --------- -----");
       for (i = 0; i < miles.length; i++) {
           System.out.printf("%10s", names[i] + " ");
           for (j = 0; j < miles[0].length; j++) {
               totWeek += miles[i][j];
           }
           average = (double) totWeek / miles[0].length;
           System.out.printf("%d %.2f ", totWeek, average);
           totWeek = 0;
       }

   }

}

__________________

Output:

Day1   Day2   Day3   Day4   Day5   Day6   Day7
Jason 5 6 3 4 8 3 4  
Samantha 3 4 5 6 3 4 5  
Ravi 3 4 5 6 5 5 5  
Sheila 5 5 4 3 4 2 2  
Ankit 7 6 5 7 6 5 6  

Name   Total Miles   Average
-----   ---------   -----
Jason   33       4.71
Samantha   30       4.29
Ravi   33       4.71
Sheila   25       3.57
Ankit   42       6.00

___________________Thank You

Related Questions

Navigate

• Browse (All)
• Browse J
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.