// Define the interface
interface Shape {
double PI = 3.14159;
double area();
double volume();
}
// Cylinder class implementing Shape interface
class Cylinder implements Shape {
private double radius;
private double height;
// Constructor to initialize radius and height
public Cylinder(double radius, double height) {
this.radius = radius;
this.height = height;
}
// Implementing the area method
public double area() {
return 2 * PI * radius * height + 2 * PI * radius * radius;
}
// Implementing the volume method
public double volume() {
return PI * radius * radius * height;
}
}
public class InterfaceDemo {
public static void main(String[] args) {
// Create a Cylinder object
Cylinder cylinder = new Cylinder(5, 10);
// Calculate and display area and volume
System.out.println("Cylinder Area: " + cylinder.area());
System.out.println("Cylinder Volume: " + cylinder.volume());
}
}
