Question

Define a class student described as below:
Data Members: Name, class, m1, m2.m3, m4, total, perc
Member methods:
(i) To accept the details of marks in four subjects.
(ii) To display the details of the student and percentage and total.
(iii) To calculate the total and percentage of a student.
Write main method to create object of a class and call the above member method.​

Answer 1

Answer:

import java.util.*;

public class Student {

   int m1, m2, m3, m4, total;

   double perc;

   String name;

   public void acceptDetails() {

       Scanner sc = new Scanner(System.in);

       System.out.println("Enter name: ");

       name = sc.nextLine();

       System.out.println("Enter marks in 4 subjects:");

       m1 = sc.nextInt();

       m2 = sc.nextInt();

       m3 = sc.nextInt();

       m4 = sc.nextInt();

   }

   public void calculate() {

       total = m1 + m2 + m3 + m4;

       perc = total / 400.0 * 100;

   }

   public void display() {

       System.out.println("Student name: " + name);

       System.out.println("Mark in 1st subject: " + m1);

       System.out.println("Mark in 2nd subject: " + m2);

       System.out.println("Mark in 3rd subject: " + m3);

       System.out.println("Mark in 4th subject: " + m4);

       System.out.println("Total mark: " + total);

       System.out.println("Percentage: " + perc);

   }

   public static void main(String args[]) {

       Student s = new Student();

       s.acceptDetails();

       s.calculate();

       s.display();

   }

}