//PREDEFINED FACTORIAL NUMBER // class fac{ // public static void main(String[] args) { // int n=7,fact=1; // for(int i=1;i<=n;i++){ // fact=fact*i; // } // System.out.println("factorial num is: "+ n + " is " + fact); // } // } //USERDEFINED FACTORIAL NUMBER import java.util.*; class fac{ public static void main(String[] args) { int n=1,fact=1; System.out.println("Enter number" ); Scanner s = new Scanner(System.in); n=s.nextInt(); for(int i=1;i<=n;i++) { fact=fact*i; } System.out.println("factorial num is: "+ n + " is " + fact); } }