Custom Random String3 

Apache Commons Lang 3.0 is a java library with lot of utilities and reusable components. This requires the library commons-lang3-3.0.1.jar to be in classpath. The following example shows using RandomStringUtils.random() API. It generates a random string of given length from the user provided characters.

File Name  :   com/bethecoder/tutorials/commons_lang/tests/random/RandomCustomStringTest3.java  Author  :   Sudhakar KV Email  :   [email protected]

package com.bethecoder.tutorials.commons_lang.tests.random; import org.apache.commons.lang3.RandomStringUtils; public class RandomCustomStringTest3 {   /**    * @param args    */   public static void main(String[] args) {          //Random string of length 4     System.out.println(RandomStringUtils.random(4, 'a', 'b', '1', '2', '$', '*'));           //Random string of length 6     System.out.println(RandomStringUtils.random(6, 'x', 'y', 'z', '0', '9', '@', '#'));    } }

2ab*
0z9z#9