/* Your code... */public class MathOperations { // Method to add two integers public int add(int a, int b) { return a + b; } // Method to add three integers public int add(int a, int b, int c) { return a + b + c; } // Method to add two double values public double add(double a, double b) { return a + b; } public static void main(String[] args) { MathOperations math = new MathOperations(); System.out.println(math.add(5, 3)); // Output: 8 System.out.println(math.add(5, 3, 2)); // Output: 10 System.out.println(math.add(5.5, 3.2)); // Output: 8.7 } }

public class Box { double width, height, depth; // Constructor with no parameters public Box() { this.width = 1; this.height = 1; this.depth = 1; } // Constructor with three parameters public Box(double width, double height, double depth) { this.width = width; this.height = height; this.depth = depth; } // Constructor with one parameter public Box(double side) { this.width = side; this.height = side; this.depth = side; } public double volume() { return width * height * depth; } public static void main(String[] args) { Box box1 = new Box(); // Default constructor Box box2 = new Box(5, 10, 15); // Constructor with three parameters Box box3 = new Box(7); // Constructor with one parameter System.out.println(box1.volume()); // Output: 1.0 System.out.println(box2.volume()); // Output: 750.0 System.out.println(box3.volume()); // Output: 343.0 } }