Rectangle Area

/* Write a program that enters the sides of a rectangle (two integers a and b)
 * and calculates and prints the rectangle's area. */

import java.util.Scanner;

public class _01_RectangleArea {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner scan = new Scanner(System.in);
        System.out.println("Enter 2 positive Integer numbers for the sides of rectangle:");
        int sideA = scan.nextInt();
        int sideB = scan.nextInt();

        if (sideA > 0 && sideB > 0) {
            long rectangleArea = sideA * sideB;
            System.out.println("The Area of that rectangle is: " + rectangleArea);
        } else {
            System.out.println("Error! - Invalid Input!!!");
        }
    }

}