Take an integer number as ‘n’ form user and calculate the factorial of that number using Java.

Program-

import java.util.*;

public class Factorial {

 public static void main(String[] args){

 Scanner sc = new Scanner(System.in);

 System.out.println("Enter a number : ");

 int n =sc.nextInt();

 double fact =1;

 for(int i=1;i<=n;i++){

 fact*=i;

 }

 System.out.println("factorial = " +fact);

 }

}