generate Random Email - Java java.lang

Java examples for java.lang:String Random

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Description

generate Random Email

Demo Code


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

public class Main {
    public static void main(String[] argv) {
        System.out.println(generateRandomEmail());
    }/*from   w w  w  .  ja v a 2 s  .  c o m*/

    public static String generateRandomEmail() {
        String str1 = generateRandomString(3, 15);
        String str2 = generateRandomString(3, 15);
        String str3 = generateRandomString(3, 15);
        return String.format("%s.%s@%s.com", str1, str2, str3);
    }

    public static String generateRandomString(int min, int max) {
        String signsSet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnoprqstuvwxyz";
        char[] chars = signsSet.toCharArray();
        String randString = "";
        Random rand = new Random();
        int length = rand.nextInt((max - min) + 1) + min;
        while (length > 0) {
            randString += chars[rand.nextInt(chars.length)];
            length--;
        }
        return randString;
    }
}

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