Question

Design a solution that requests and receives student names and an exam score for each. Use one-dimensional arrays to solve this.

• The program should continue to accept names and scores until the user inputs a student whose name is “alldone”.
• After the inputs are complete determine which student has the highest score and display that student’s name and score.
• Finally sort the list of names and corresponding scores in ascending order.

When you are done, printout the Code and, also the corresponding output produced. Upload both the txt file and the console output showing that your program run correctly.

Sample Input:

John   69

Alex 89

Billy 72

Sam   59

Serena 96

Alldone

Sample Output:

The student with the highest score is Serena with a score of 96

Sorted list

Serena 96

Alex 89

Billy 72

John   69

Sam   59

Please Write In JAVA

Thank you

Answer 1

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts or if you need anything to change. If you are satisfied with the solution, please rate the answer. Thanks

// Students.java

import java.io.File;

import java.util.Scanner;

public class Students {

      // method to find the index of largest score in an array

      static int findMax(int scores[], int count) {

            int index = -1;

            for (int i = 0; i < count; i++) {

                  // if index is still -1 or if current score is bigger than score at

                  // index, updating index

                  if (index == -1 || scores[i] > scores[index]) {

                        index = i;

                  }

            }

            return index;

      }

      // method to sort the names and scores array

      static void sort(String names[], int scores[], int count) {

            // sorting using bubble sort algorithm

            for (int i = 0; i < count; i++) {

                  for (int j = 0; j < count - 1; j++) {

                        if (scores[j] < scores[j + 1]) {

                              // swapping elements at i and j in both names and scores

                              // arrays

                              int tmp1 = scores[j];

                              scores[j] = scores[j + 1];

                              scores[j + 1] = tmp1;

                              String tmp2 = names[j];

                              names[j] = names[j + 1];

                              names[j + 1] = tmp2;

                        }

                  }

            }

      }

      public static void main(String[] args) {

            // creating arrays to store names and scores. assuming there are no more

            // than 50 students

            String names[] = new String[50];

            int scores[] = new int[50];

            int numStudents = 0; // current number of students

            // initializing scanner to read from console. if you are reading data

            // from a file, then replace System.in with the File object, for

            // example, if you are reading from data.txt, then replace below line

            // with this => Scanner scanner = new Scanner(new File("data.txt"));

            // make sure to throw IOException, and import java.io.File;

            Scanner scanner = new Scanner(System.in);

            String name = "";

            int score;

            // looping until alldone (case insensitive) is read for name

            while (!name.equalsIgnoreCase("alldone")) {

                  //reading name

                  name = scanner.next();

                  if (!name.equalsIgnoreCase("alldone")) {

                        //reading score

                        score = scanner.nextInt();

                        //adding to arrays

                        names[numStudents] = name;

                        scores[numStudents] = score;

                        numStudents++;

                  }

            }

            //finding index of highest score

            int indexOfHighest = findMax(scores, numStudents);

            //displaying name and score of highest scorer

            if (indexOfHighest != -1) {

                  System.out.println("The student with the highest score is "

                              + names[indexOfHighest] + " with a score of "

                              + scores[indexOfHighest]);

            }

           

            //sorting and displaying sorted list

            sort(names, scores, numStudents);

            System.out.println("Sorted list");

            for (int i = 0; i < numStudents; i++) {

                  System.out.println(names[i] + "\t" + scores[i]);

            }

      }

}

/*OUTPUT (input is highlighted in bold text)*/

John   69

Alex 89

Billy 72

Sam   59

Serena 96

Alldone

The student with the highest score is Serena with a score of 96

Sorted list

Serena 96

Alex 89

Billy 72

John 69

Sam   59