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 customer’s mobile number.
double cost: to store the cost of the item purchased.
double dis: to store the discount amount.
double amount: to store the amount to be paid after discount.
Methods:

ShowRoom(): default constructor to initialize the data members
void input(): to input customer name, mobile number, cost
void calculate(): to calculate the discount on the cost of purchased items, based on the 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, mobile number, amount to be paid after discount.
Write a main() method to create an object of the class and call the above methods.

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Code

				
					import java.util.Scanner;
public class ShowRoom
{
	String name;
	long mobno;
	double cost,dis,amount;
	/*default constructor*/
	public ShowRoom()		
	{
		name="";
		mobno=0;
		cost=0.0;
		dis=0.0;
		amount=0.0;
	}
	public void input()
	{
		Scanner sc = new Scanner(System.in);
		System.out.print("Enter your name: ");
		name=sc.nextLine();
		System.out.print("Enter your Mobile Number: ");
		mobno=sc.nextLong();
		System.out.print("Enter cost of item purchased: ");
		cost=sc.nextDouble();
	}
	public 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;
		}
	}
	public void display()
	{
		System.out.println("Name of the customer: "+name);
		System.out.println("Mobile number : "+mobno);
		System.out.println("Amount to be paid after discount: "+amount);
	}

	public static void main(String[]args)
	{
		ShowRoom ob1 = new ShowRoom();
		ob1.input();
		ob1.calculate();
		ob1.display();
	}
}