Assignment
import java.util.Scanner; public class Kelculator { // Method to calculate area of a circle public static void calculateCircleArea(double radius) { double area = Math.PI * radius * radius; System.out.println("The area of the circle is: " + area); } // Method to calculate area of a square public static void calculateSquareArea(double side) { double area = side * side; System.out.println("The area of the square is: " + area); } // Method to calculate area of a rectangle public static void calculateRectangleArea(double length, double width) { double area = length * width; System.out.println("The area of the rectangle is: " + area); } // Method to calculat...