In JavaAttached Define the class InvalidSideException, which inherits from the Exception class. Also define a Square class, whichhas one method variable -- an int describing the side length. The constructor of the Square class should takeone argument, an int meant to initialize the side length; however, if the argument is not greater than 0, theconstructor should throw an InvalidSideError. The Square class should also have a method getArea(), whichreturns the area of the square.Create a Driver class with a main method to test your classes. Your program should prompt the user to enter avalue for the side length, and then create a Square object with that side length. If the side length is valid, theprogram should print the area of the square. Otherwise, it should catch the InvalidExceptionError, print "Sidelength must be greater than 0.", and terminate the program.

In Java, we can create our own exceptions by extending Exception class that belongs to java.lang package. In the program class InvalidSideError extends Exception class which throws an exception if the user enters side of square less than 0.import java.util.Scanner; import java.util.*;import java.lang.*; class InvalidSideError extends Exception { public InvalidSideError (String str) { // calling the constructor of parent Exception super(str); } } class Square{ public int side; public Square(int x) throws InvalidSideError { if(x <= 0) throw new InvalidSideError("Side length must be greater than 0."); else side = x; } public int getArea() { return (side*side); }} public class Main{ public static void main(String[] args) { Scanner sc = new Scanner(System.in); int x; try { System.out.println("Enter side of Square:"); x = sc.nextInt(); Square sq = new Square(x); System.out.println("\nArea is : " + sq.getArea()); } catch (InvalidSideError ex) { System.out.println(ex.getMessage()); System.exit(0); } }}