public class RecursiveFactorial

{
  public static void main( String [] args )
  {
    // compute factorial of 7 and output it
    System.out.println( "Factorial ( 7 ) is "
                      + factorial( 7 ) );
  }
 
  public static int factorial( int n )
  {
    if ( n <= 0 )  // base case
     return 1;
    else    // general case
     return ( n * factorial ( n - 1 ) );
  }
}