Java Program to find the Factorial of a Number using For Loop

In this video you will learn to create a Java Program to find the factorial of a number using for loop ( iterative method ).
The factorial of a positive integer n, which is denoted as n!, is the product of all positive integers less than or equal to n.
That is n! = n * (n-1)*(n-2)*....*3*2*1
So 4! = 4 * 3 * 2 * 1 which is equal to 24.
Factorial for the numbers 0 and 1 is 1. That is 0! = 1 and 1! = 1. For negative numbers factorial value doesnt exists.
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[@sadhamhussain1272]

public class Factorial { public static void main(String[] args) { // 10 factorial 1*2*3*4*5*6*7*8*9*10 int no=10; int fact=1; for(int i=1;i

[@stiflazo266]

Thank you so much! new suscriber :D

[@ExampleProgram]

Welcome!

[@Randomthings920]

how do I make it 5: (Expected display: "5 x 4 x 3 x 2 x 1 is 120.")??

[@feliperibeiro4417]

Tks ........from Brazil.

[@ExampleProgram]

Pleasure 👍

[@jabedkhanjb]

Thanks

[@ExampleProgram]

Welcome :)

[@abdulzariq8520]

Hi, I would like to have the same method but this time with while loop instead of for loop

[@ExampleProgram]

You can easily do it Try 👍

[@stanislavdimitrov1643]

This 'long' data type is maybe a source for errors, isn't it?

[@beng6031]

Is it correct

[@jenrendavecabugan1538]

How to make repetition of that?

[@ExampleProgram]

use a loop

[@beng6031]

Mine showed 4! = d! but it said build successful

[@ExampleProgram]

you missed % symbol before d in printf function. add that. it will work :)

[@arshiyashaik6957]

Why do u took factorial = 1?🙄

[@aahaanchawla5393]

He has to do that or else the compiler will show an error. As factorial has not been given any value it wont be able to perform the operation in the for loop. The reason why 1 is important is because 1*something = something nd that is needed for it to work.