Class Creation: Calculation Method

In this problem, you will create a Rectangle class and implement calculateArea() and calculatePerimeter() methods that compute and return area and perimeter from field values.

Learning Objective: Create methods that perform calculations using field values

Overview

Create a class representing a rectangle and implement methods to calculate area and perimeter.

Specifications

• Create a Rectangle class
• Define int fields width and height
• Initialize via constructor
• Create calculateArea() method returning area (width x height)
• Create calculatePerimeter() method returning perimeter (2 x (width + height))

Usage Example

Rectangle rect = new Rectangle(5, 3);
System.out.println(rect.calculateArea());      // 15
System.out.println(rect.calculatePerimeter()); // 16