Calculating the Area of a Square

# Introduction

In this lab, you need to create a program that calculates the area of a square using encapsulation by creating a class with a private field for length, a public setter method for initializing the length, and a method for calculating and printing the area, and then in the main method, getting input for the length, creating an object of the class, calling the setter method with the length input, and finally calling the calculateArea method to calculate and print the area of the square.