public class Assign01
{
   public static void main(String[] args)
   {
      double x = 1.0;   // x = 1.0

      System.out.print("Before: x = ");
      System.out.println(x);  

      x = x + 4.0;

      System.out.print("After: x = ");
      System.out.println(x);  
   }
}