Question

Write a program for the following.

Define a class Store, described as below:

Data Members: income (double), expenditure (double), net (double)
Member Methods:
(i)	Store()	constructor to initialize member data to null.
(ii)	Input()	to input values for member data income and expenditure.
(iii)	Procedure()	to calculate value of net using the following formula net = income - expenditure.
(iv)	Display()	to display all the member data.
Write a main() method to create an object of the class and call the above member methods.

Answer 1

import java.util.*;
class Store
{
    double income, expenditure, net;
    //Constructor
    Store()
    {
        income = 0.0;
        expenditure = 0.0;
        net = 0.0;
    }
    //Input method
    void Input()
    {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter Income:");
        income = sc.nextDouble();
        System.out.print("Enter Expenditure:");
        expenditure = sc.nextDouble();
    }
    //Procedure method
    void Procedure()
    {
        net = income - expenditure;
    }
    //Display method
    void Display()
    {
        System.out.println("Income =" + income);
        System.out.println("Expenditure =" + expenditure);
        System.out.println("Net = " + net);
    }
    //Main method
    public static void main(String args[])
    {
        Store obj = new Store();
        obj.Input();
        obj.Procedure();
        obj.Display();
    }
}