package java1;

class Circle

{

public double radius;

public double area()

{

return Math.PI*radius*radius;

}

public double perimeter()

{

return 2*Math.PI*radius;

}

public double circumference()

{

return perimeter();

}

}

public class Java1 {

public static void main(String[] args) {

Circle c1=new Circle();

c1.radius=7;

System.out.println("Area:"+c1.area());

System.out.println("Perimeter:"+c1.perimeter());

System.out.println("Circumference:"+c1.circumference());

}

}