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Deviation Program - Java Programs

Write a program to accept name and total marks of N number of students in two subscript 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]

Java


import java.util.Scanner;
class Deviation{
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Number of students: ");
        int n = Integer.parseInt(in.nextLine());
        String name[] = new String[n];
        int totalMarks[] = new int[n];
        double total = 0.0;
        for(int i = 0; i < n; i++){
            System.out.print("Name: ");
            name[i] = in.nextLine();
            System.out.print("Total marks: ");
            totalMarks[i] = Integer.parseInt(in.nextLine());
            total += totalMarks[i]; 
        }
        double avg = total / n;
        System.out.println("Average marks: " + avg);
        for(int i = 0; i < n; i++){
            double d = totalMarks[i] - avg;
            System.out.println("Deviation of " + name[i] + " = " + d);  
        }
    }
}

Output

 
 OUTPUT  : 
Number of students: 5
Name: Ajay
Total marks: 78
Name: Anand
Total marks: 95
Name: Navita
Total marks: 70
Name: Bala
Total marks: 59
Name: Santosh
Total marks: 69

Average marks: 74.2
Deviation of Ajay = 3.799999999999997
Deviation of Anand = 20.799999999999997
Deviation of Navita = -4.200000000000003
Deviation of Bala = -15.200000000000003
Deviation of Santosh = -5.200000000000003