[تنبيه - عنوان غير مناسب : ]هل ممكن شرح هذا الكود

import java.util.Scanner;
class FindAreaRectangle
{
public static void main(String args[])
{
Scanner scan = new Scanner (System.in);
//input
double length;
System.out.println("Enter length");
length= scan.nextDouble( );   // read from keyboard double data
//double length=scan.nextDouble( );
double width;
System.out.println("Enter Width");
width=scan.nextDouble( );
//process
double area;
area=length*width;
// double area=length*width;
// print out result
System.out.println("Length = "+length);
System.out.println("Width = "+width);
System.out.println("Area = "+area+" cm^2");
}
}

هل من الممكن شرحه