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);
}
}