import java.util.Scanner;
class KW
{
    public static void main(String args[])
    {
        float r;
        Scanner sc=new Scanner(System.in);
        System.out.println("———————————————————————————————————————————");
        System.out.println("Program to calculate the area of circle ");
        System.out.println("———————————————————————————————————————————");
        System.out.print("Enter the radius of circle ");
        r=sc.nextFloat();
        System.out.println("Area of circle is "+(3.14*r*r));
        System.out.println("Circumference of circle is "+(2*3.14*r));
        System.out.println("———————————————————————————————————————————");
    }
}

kodingwindow@kw:~$ javac KW.java
kodingwindow@kw:~$ java KW
———————————————————————————————————————————
Program to calculate the area of circle 
———————————————————————————————————————————
Enter the radius of circle 10
Area of circle is 314.0
Circumference of circle is 62.800000000000004
———————————————————————————————————————————
kodingwindow@kw:~$