Cannot find symbol

[TripleZigZag]

I'm new to Java but I do have some programming experience. I'm working on a piece of code that accepts an integer from the user, and spits out its factorial.
But I keep getting a "Cannot find symbol" error at:
result = Integer.toString(facter);

I can't for the life of me figure out whats going on. Any help is appreciated. Thanks guys and have a good day. Code is below.

	int count = 0;
	String result = "";
	Scanner keyboard = new Scanner(System.in);
    	int userinput = keyboard.nextInt();

    	if (userinput <= 0) {
    		System.out.println("Please enter a number larger than 0");
    	} else {
    		while (count < userinput) {
    		        int facter = userinput * (userinput-1);
    			userinput = (userinput-1);
    			count = count-1;
    		}
		result = Integer.toString(facter);
    		System.out.println(result);
    	}

[doWhile]

The variable facter is out of scope once you've exited the while loop. Define it within the scope of where you wish to use it (eg outside the while loop) and it will compile (whether this results in the behavior you want is up to you)

[TripleZigZag]

The variable facter is out of scope once you've exited the while loop. Define it within the scope of where you wish to use it (eg outside the while loop) and it will compile (whether this results in the behavior you want is up to you)

Figured as much, but I can't think of any other way to write this program. Hints?

[Iron Lion]

Declare it after you declare userinput.

Your loop will run endlessly, because userinput and count are both being decremented at the same rate, and if the condition is true to begin with it will never stop being true. (Edit: Actually it'll stop when it goes out of the range of an int, but that won't provide the result you're looking for either.)

Also, look up the ++ and -- operators; "count--" is a lot quicker to write than "count = count - 1".

[sunde887]

it might be simpler to create a method which determines the factorial of some number and returns an int

public static int fact(int n)

Then simply get input, call this method with the input and print the answer.

Another thing which could be easier is to simply use a for loop

for(int i = 1; i <= input; i++){
  //do something
}

If you like a while loop try just doing

while(input > 0){
  //do something
}