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How to generate a Random String from given characters 

Jodd is an open-source java library with lot of reusable components and feature rich utilities. This requires the library jodd-3.3.2.jar to be in classpath. The following example shows how to generate a random string of specified length from the given characters using RandomStringUtil.random() API.

File Name  :  
com/bethecoder/tutorials/jodd/utils/RandomCharsetTest.java 
Author  :  Sudhakar KV
Email  :  kvenkatasudhakar@gmail.com
   
package com.bethecoder.tutorials.jodd.utils;

import jodd.util.RandomStringUtil;

public class RandomCharsetTest {

  /**
   @param args
   */
  public static void main(String[] args) {
    System.out.println(RandomStringUtil.random(4"abcd"));
    System.out.println(RandomStringUtil.random(6"xyz123"));
    System.out.println(RandomStringUtil.random(8"#@&%$"));
  }

}
   

It gives the following output,
acad
y2z21x
@@&$&%$$


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