Java Factorial factorial(int n)

Description

Computes n!.

License

Open Source License

Parameter

Parameter	Description
n	the number

Return

n!

Declaration

public static long factorial(int n) 

Method Source Code

//package com.java2s;
/*// w w w. ja v  a 2s. com
 * Copyright (c) 2013 Game Salutes.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser Public License v3
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl.html
 * 
 * Contributors:
 *     Game Salutes - Repackaging and modifications of original work under University of Chicago and Apache License 2.0 shown below
 * 
 * Repackaging from edu.uchicago.nsit.iteco.utils to com.gamesalutes.utils
 * 
 * Copyright 2008 - 2011 University of Chicago
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

public class Main {
    /**
     * Computes <code>n!</code>.
     * 
     * @param n the number
     * @return <code>n!</code>
     */
    public static long factorial(int n) {
        if (n == 0)
            return 1;

        long fact = n;
        for (int i = n - 1; i > 1; --i)
            fact *= i;
        return fact;
    }
}

Related

1. factorial(final long value)
2. factorial(int c)
3. factorial(int i)
4. factorial(int input)
5. factorial(int integer)
6. factorial(int n)
7. factorial(int n)
8. factorial(int n)
9. factorial(int n)