–>Should be able to define a solution of a problem in terms of solution of similar problems

   –>Proper terminating condition

Factorial==>

5!=>5x4x3x2x1

5!=5×4!

4!=4x3x2x1

4!=4×3!

cimport java.util.*;

class ASC

{

 static int fact(int n)//5

  {

   if(n==0)

    return 1;

   else

    return n*fact(n-1);

  }

public static void main(String args[])

{

int result=fact(5);

System.out.println(result);

}

}