get random double value - Android java.util

Android examples for java.util:Random Double

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Description

get random double value

Demo Code


//package com.java2s;
import java.math.BigDecimal;
import java.util.Random;

public class Main {
    /**//w  w  w .jav  a 2 s . c o  m
     * get random double value
     * 
     * @return
     */
    public static double getRandomDou(double min, double max,
            int digitsNumber) {
        Random r = new Random();
        double randomLimit = max - min;
        double dou = r.nextDouble() * randomLimit + min;
        BigDecimal bg = new BigDecimal(dou);
        dou = bg.setScale(digitsNumber, BigDecimal.ROUND_DOWN)
                .doubleValue();
        return dou;
    }
}

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