Find a factorial of a given number | Basic java programs for interview for Test automation engineer

To find a factorial of a given number is very simple. For exp if we have to find factorial of 5 than we have to (5*4*3*2*1) here we are doing multipication of a number and print sum of it.

import java.util.Scanner;

public class factorial {

 public static void main(String[] args) {


  Scanner sc= new Scanner(System.in);
  System.out.println("enter the number: ");

  int num=sc.nextInt();

  int sum=1;

  for(int i=num;i>=1;i--)

  {
   sum=sum*i;
   if(i==1)
   {
    System.out.println("factorial of"+" "+num+" "+ "is-->" +" "+sum);
   }

  }
 }


}