Java Random Int randomNumberBetweenIntervals(int min, int max)

Description

Returns a random number from the specified range

License

Open Source License

Parameter

Parameter	Description
min	the smallest value that should occur when randomly generating numbers
max	the largest value that should occur when randomly generating numbers

Return

a random number between min and max. If min is larger than max, an exception will be thrown!

Declaration

public static int randomNumberBetweenIntervals(int min, int max) 

Method Source Code

//package com.java2s;
/* The MIT License (MIT)

 Copyright (c) 2012 Jerome Wagener/* w  ww . ja  v  a2 s  .co  m*/

 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
 the Software without restriction, including without limitation the rights to
 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 the Software, and to permit persons to whom the Software is furnished to do so,
 subject to the following conditions:

 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.*/

public class Main {
    /** Returns a random number from the specified range 
     * @param min the smallest value that should occur when randomly generating numbers 
     * @param max the largest value that should occur when randomly generating numbers 
     * @return a random number between min and max. If min is larger than max, an exception will be thrown! */
    public static int randomNumberBetweenIntervals(int min, int max) {
        if (min >= max) {
            throw new IllegalArgumentException(
                    "The minimum bound cannot be larger or equal to the maximum bound!");
        }

        return min + (int) (Math.random() * ((max - min) + 1));
    }
}

Related

1. randomNum(int number)
2. randomNumber(int lower, int upper)
3. randomNumber(int lower_bound, int higher_bound)
4. randomNumber(int min, int max)
5. randomNumber(int minimum, int maximum)
6. randomNumberWithinRange(int low, int high)
7. randomNumberWithinRange(int min, int max)
8. randomPass(int n)
9. randomPointInConvexPoly(float[] pts, int npts, float[] areas, float s, float t)