hi... pls give me the example of java coding fo following question

import java.util.*;
import java.text.*;

class CalculateCylinderVolume
{
    public static void main(String[] args) 
    {   
        DecimalFormat df = new DecimalFormat("##.00");
        double PI=3.14;
        Scanner input=new Scanner(System.in);
        System.out.print("Enter Radius: ");
        double r=input.nextDouble();

        System.out.print("Enter Length: ");
        double l=input.nextDouble();

        double area=r*r*PI;
        double volume=area*l;
        System.out.println("Volume of Cylinder: "+df.format(volume));
        }
}