Answer to Question #269055 in Java | JSP | JSF for Dan

Question

Factorials

by CodeChum Admin

For those of you who may not now, a factorial is a product of multiplying from 1 until the number. Now, you must make a program that will accept an integer and then print out its factorial using loops.

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Instructions:

Input a positive integer.

Using a for() loop, generate the factorial value of the integer and print out the result.

Tip #1: Factorials work like this: Factorial of 5 = 1 * 2 * 3 * 4 * 5

Tip #2: There's a special case in factorials. The factorial of 0 is 1.

Input

A line containing an integer.

5

Output

A line containing an integer.

120

Answer 1

SOLUTION TO THE ABOVE QUESTION

SOLUTION CODE

package com.company;
import java.util.*;
class Main {

    // Main driver method
    public static void main(String[] args)
    {

         Scanner sc = new Scanner(System.in);
         //propmt the user to enter an integer value
        System.out.print("\nEnter an integer: ");
        int my_integer = sc.nextInt();

        int factorial = 1;
        for(int i = 1; i<= my_integer;i++)
        {
            factorial = factorial * i;
        }

        System.out.println("\nThe factorial of "+my_integer+" = "+factorial);

    }
}

SAMPLE PROGRAM OUTPUT