steima

public class RandomCode {

  public static final String EXISTING_CODES[] = { "12345", "54321", "11111", "22222", "33333", "44444" };
  
  public static void main(String args[]) {
    
    // TODO generate random code
    
    // TODO check if random code is unique
    

steima

package com.clesyclean.service.entities.base;

import java.math.BigDecimal;

import javax.persistence.Embeddable;

import lombok.Data;

@Data
@Embeddable