generate Random Lower String - Java java.util

Java examples for java.util:Random String

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Description

generate Random Lower String

Demo Code


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

public class Main {
    public static final String allChar = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
    public static final String letterChar = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

    public static String generateLowerString(int length) {
        return generateMixString(length).toLowerCase();
    }/*from w w w . ja va  2 s  .c om*/

    public static String generateMixString(int length) {
        StringBuffer sb = new StringBuffer();
        Random random = new Random();
        for (int i = 0; i < length; i++) {
            sb.append(allChar.charAt(random.nextInt(letterChar.length())));
        }
        return sb.toString();
    }
}

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