Question

Write a program to accept name and total marks of N number of students in two single subscripts array name[] and totalmarks[].

Calculate and print:
(i) The average of the total marks obtained by N number of students.
[average = (sum of total marks of all the students) / N]
(ii) Deviation of each student’s total marks with the average.
[deviation = total marks of a student – average]

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Code

import java.util.Scanner;
public class program9
{
    public static void main(String[] args)
    {
        int sum=0,n=0;
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter number of students: ");
        n = sc.nextInt();
        String[] name = new String[n];
        int[] totalmarks = new int[n];
        for (int i = 0; i< n; i++)
        {
            System.out.println("Student " + (i + 1));
            System.out.print("Enter name of student: ");
            name[i] = sc.next();
            System.out.print("Enter marks: ");
            totalmarks[i] = sc.nextInt();
        }

        for (int i = 0; i< n; i++)
        {
            sum = sum + totalmarks[i];
        }
        double average = (double) sum / n;
        System.out.println("Average of all marks " + average);
        for (int i = 0; i< n; i++)
        {
            double deviation = totalmarks[i] - average;
            System.out.println("Deviation of " + name[i] + " is " + deviation);
        }
    }
}