6位随机数

import org.apache.commons.lang.RandomStringUtils; 
 
public class DummyFileHelper { 
    //private final static String RAMDOM_SOURCE = "0123456789";
private final static String RAMDOM_SOURCE = "0123456789025689"; 
 
    public static void main(String[] args) throws IOException { 
    String randomNumber=RandomStringUtils.random(6, RAMDOM_SOURCE);
    System.out.println(randomNumber);
    } 
}