Setter method: Product class

In this problem, you will create a program that modifies private fields (name and price) of a Product class through setter methods, and displays the product information before and after the change to standard output.

Learning Objective: Understand how to safely modify private fields using setter methods

Create a Product class and learn to modify fields through setter methods. Setters can also perform validation.

Input

Line 1: Product name (string)
Line 2: Initial price (integer)
Line 3: New price (integer)

Output

Before: [product name] - [initial price] yen
After: [product name] - [new price] yen