Check out example codes for "factorial program in java without recursion". It will help you in understanding the concepts better.

Code Example 1

public class Tester {
   static int factorial(int n) {
      if (n == 0)
         return 1;
      else
         return (n * factorial(n - 1));
   }
   public static void main(String args[]) {
      int i, fact = 1;
      int number = 5;
      fact = factorial(number);
      System.out.println(number + "! = " + fact);
   }
}

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