Java Random Int randomInteger(int low, int high)

Description

Returns an integer value with a positive sign, greater than or equal to low and less than or equal to high.
Note: low limit is inclusive and high limit is also inclusive.
The formula used in this method is:
randomInteger = (int) (Math.random() * (high + 1 - low)) + low; (low: Inclusive, high: Inclusive)

License

Open Source License

Parameter

Parameter	Description
low	The low limit of the result (inclusive).
high	The high limit of the result (inclusive).

Return

The random number in the given range.

Declaration

public static int randomInteger(int low, int high)

Method Source Code

//package com.java2s;
/**/*from w  w  w .j  a va2 s. c o  m*/
 * Project: JavaGE Library
 * Author:  Loukas Georgiou
 * Date:   14 Jan 2006
 * 
 * Copyright 2006, 2008 Loukas Georgiou.
 * This file is part of JavaGE (jGE) Library.
 * 
 * jGE Library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
    
 * jGE Library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
    
 * You should have received a copy of the GNU General Public License
 * along with jGE Library.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    /**
     * Returns an integer value with a positive sign, greater than or equal to <code>low</code> 
     * and less than or equal to <code>high</code>.<br>
     * Note: <code>low</code> limit is inclusive and <code>high</code> limit is also inclusive.<br>
     * The formula used in this method is:<br>
     * <code>randomInteger = (int) (Math.random() * (high + 1 - low)) + low; (low: Inclusive, high: Inclusive)</code>
     * 
     * @param low The low limit of the result (inclusive).
     * @param high The high limit of the result (inclusive).
     * @return The random number in the given range.
     */
    public static int randomInteger(int low, int high) {
        return (int) (Math.random() * (high + 1 - low)) + low;
    }
}