Untitled

package lab4;

public class Circle {
    private double radius;

    
    public Circle(double radius) {
        this.radius = radius;
    }


    public double calculateCircumference() {
        return 2 * Math.PI * radius;
    }


    public double calculateArea() {
        return Math.PI * Math.pow(radius, 2);
    }

    public static void main(String[] args) {
     
        double radius = 5.0; 
        Circle circle = new Circle(radius);


        double circumference = circle.calculateCircumference();
        System.out.println("Circumference: " + circumference);

    
        double area = circle.calculateArea();
        System.out.println("Area: " + area);
    }
}