Factorial Program in Java

Java Program to Find Factorial on Number

Factorial of any number is the product of an integer and all the integers below it for example factorial of 4 is 4! = 4 * 3 * 2 * 1 = 24. In below code i will show you how to design Java program to find factorial, using for loop you can perform this task.

import java.util.Scanner;
class Factorial
{
	public static void main(String[] args) 
	{
    int no, fect=1;
	Scanner s=new Scanner(System.in);
    System.out.println("Enter any number :");
	no=s.nextInt();
    for(int i=1; i<=no; i++)
	{
	fect=fect*i;
	}
	System.out.println("Factorial is :" +fect);
	}
}

Enter any number :
6
Factorial is :
720

Syntax to compile and run java program

for compile -> c:/>javac Factorial.java
for run -> c:/>java Factorial

Explnation of Code

• Scanner s=new Scanner(System.in): are used for receive input from keyboard.
• nextInt(): method are used for get integer type value from keyboard.
• System.out.println("....."): are used for display message on screen or console.