Creating class object to do factorial recursion? [closed]

Answer 1

If you want this to be in a separate class, just encapsulate your fact() method in a new class. Note, however, that your printout of the time taken is incorrect - it merely computes the time for the final entry into the recursive method.

public class Factorial {

   public static int compute( int val ) {
      long startTime = System.nanoTime();
      int result = fact( val );
      long taskTime = System.nanoTime()-startTime;
      System.out.println("Task Time: "+taskTime+ " nanoseconds.");
   }

   protected static int fact( int val ) {
      if (n==1){
         return val;
      }
      return fact(val-1)*val;
   }
}

then in you main,

 int answer =  Factorial.compute(value);