/* FILE NAME: FirstApp.java
 * AUTHOR: Stella
 * DATE: Oct 18 2007
 * COMMENTS: Creates a class, to define a class method to perform some computations.
 * It takes its input from the command line.
 * It is intended as a first example on java applications.
 * 
 * To use it:
 * Type:
 * > java FirstApp x
 * 
 * in the command line ("Interactions pane, in DrJava), 
 * where x is an integer.
 * MODIFICATION HISTORY:
*/

public class FirstApp {
  
  public static int boo (int n) {
    if (n<=2) {
      return n;
    } else {
      return n + boo(n/2) + boo(n/3);
    }
  }
  
  
  //It calls the class metod boo() and prints out the result.
  //It takes its input from the keyboard.
  public static void main(String[] args) {
    int number = Integer.parseInt(args[0]);
    
    int result = boo(number);
    
    System.out.println("boo(" + number + ") = " + result);
  }
}