Question

In Java:

Implement a program that repeatedly asks the user to input a positive integer and outputs the factorial of that input integer. Do not use recursion, solution should use stack.

Answer 1

//Main.java
import java.util.Scanner;
import java.util.Stack;
public  class Main {
  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    int n;
    Stack stack = new Stack<>();
    System.out.print("enter an integer: ");
    n = scanner.nextInt();
    int f = 1;
    for(int i = 1;i<=n;i++){
      stack.push(i);
    }

    while (!stack.empty()){
      f *= stack.peek();
      stack.pop();
    }
    System.out.println("Factorial of "+n+" is "+f);
  }
}