Need help in Java

[PugoOfficial]

So here's the question .. (Sorry I was absent that day that's why I couldn't understand what methods/attributes to use I'm so Confused if someone can give me a program I'll try to understand it )

 

- Write a Java Program that calculates the change for a cashier. The Program requests the cost of the item. The user then types in the cost. The Program then outputs the cost of the item including the sales tax (6% as the tax value). The program next requests and receives the amount tendered by the customer. Finally the program outputs the summary of all figures including the amount of change due to the customer

[MrSuperb]

So here's the question .. (Sorry I was absent that day that's why I couldn't understand what methods/attributes to use I'm so Confused if someone can give me a program I'll try to understand it )

 

- Write a Java Program that calculates the change for a cashier. The Program requests the cost of the item. The user then types in the cost. The Program then outputs the cost of the item including the sales tax (6% as the tax value). The program next requests and receives the amount tendered by the customer. Finally the program outputs the summary of all figures including the amount of change due to the customer

 

no. try it yourself and if you get stuck you will get the help needed.

[PugoOfficial]

no. try it yourself and if you get stuck you will get the help needed.

Ok I understand here's my problem now ..

import java.io.*;	class Change {				public static void main (String [] args) throws IOException {						System.out.println("Please enter the cost of the item:");						BufferedReader fc = new BufferedReader (new InputStreamReader(System.in));			String cost = fc.readLine();			double z = Double.parseDouble(cost);							System.out.println("Cost of the item: " +z);		}	}

I don't know how to add the tax to the price of the item the user entered.

[MrSuperb]

Well that is a mathematical problem.

 

cost(incl tax) = cost(w/o tax) * 1 + cost(w/o tax) * taxrate

double cost = 10;double tax = 0.09; // 9%double costAfterTax = cost + cost * tax; // costAfterTax == 10.9

[MrSuperb]

Ok I understand here's my problem now ..

 

amount tendered works like the request for the cost of the item.

 

change = amountTendered - costAfterTax