// Application to sum numbers

public class Sum
{
   public static void main (String[] args)
   {
      // variable declarations of primitive types, initialization
      int a=2, b=3, firstsum;
      double x = 4.5, y, secondsum;
      float f = 1.2F;

      // arithmetic and assignment
      firstsum = a + b;

      // cast - type conversion - not required here
      y = (double) firstsum;

      /* more arithmetic and print to standard out 
            using string catenation to prepare output string */
      secondsum = x + y;
      System.out.println("\n" + "The first sum is " + firstsum);
      System.out.println("The second sum is " + secondsum + "\n");
   }
}