// import with * sign.
import java.util.*;
class ImportTest2
{
public static void main( String args[ ] )
{
double r, a;
Scanner sc = new Scanner( System.in );
System.out.print("Enter Radius : ");
r = sc.nextDouble();
a = 3.14 * r * r;
System.out.println("Area of Circle : " + a);
}
}
Output:Enter Radius : 10
Area of Circle : 314.0