Question

Design a class name ShowRoom with the following description :
Instance variables/ Data members :

String name – To store the name of the customer
long mobno – To store the mobile number of the customer
double cost – To store the cost of the items purchased
double dis – To store the discount amount
double amount – To store the amount to be paid after discount
Member methods: –
ShowRoom() – default constructor to initialize data members
void input() – To input customer name, mobile number, cost
void calculate() – To calculate discount on the cost of purchased items, based on following criteria

Cost	Discount (in percentage)
Less than or equal to ₹ 10000	5%
More than ₹ 10000 and less than or equal to ₹ 20000	10%
More than ₹ 20000 and less than or equal to ₹ 35000	15%
More than ₹ 35000	20%

void display() – To display customer name, mobile number, amount to be paid after discount
Write a main method to create an object of the class and call the above member methods.

Answer 1

import java.io.*;
import java.util.*;
class ShowRoom {
String name;
long mobno;
double cost;
double dis;
double amount;
ShowRoom( ) {
name = ” “;
mobno =0;
cost = 0;
dis = 0;
amount = 0;
}
void input( ) {
Scanner sc = new Scanner(System.in);
System.out.println(“EnterName:”);
name = sc.nextLine( );
System.out.println(“Enter Mobile number:”);
mobno = sc.nextLong( );
System.out.println(“Enter cost:”);
cost = sc.nextDouble( );
}
void calculate( ) {
if (cost <= 10000){
dis cost*5/100;
amount = cost – dis;
}
else
if (cost > 10000 && cost < = 20000){
dis = cost* 10/100;
amount cost – dis;
}
else
if (cost > 20000 && cost < = 35000){
dis = cost* 15/100;
amount = cost – dis;
}
else
if (cost > 35000){
dis = cost*20/100;
amount = cost – dis;
}
}
void display( ) {
System.out.println(“Name::” +name);
System.out.println(“Mobile No.::” +mobno);
System.out.println(“Amount::” +amount);
}
public static void main(String args( )) {
ShowRoom ob = new ShowRoom( );
ob.input( );
ob.calculate( );
ob.display( );
}
}