get Random Float within a range - Android java.util

Android examples for java.util:Random Double

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Description

get Random Float within a range

Demo Code

/*/*from w w  w  .j av  a  2  s  . c  o m*/
 * Copyright (C) 2010   Cyril Mottier & Ludovic Perrier
 *              (http://www.digitbooks.fr/)
 *
 * 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.
 */
//package com.java2s;
import java.util.Random;

public class Main {
    private static final Random RND = new Random();

    public static float getFloat(float min, float max) {

        if (min < 0 || min > max) {
            throw new IllegalArgumentException();
        }

        final int sign = RND.nextInt(2) == 0 ? -1 : 1;
        final float number = RND.nextFloat() * (max - min) + min;

        return sign * number;
    }
}

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