### Relevant Articles: - [Wiring in Spring: @Autowired, @Resource and @Inject](http://www.baeldung.com/spring-annotations-resource-inject-autowire) - [Exploring the Spring BeanFactory API](http://www.baeldung.com/spring-beanfactory) - [How to use the Spring FactoryBean?](http://www.baeldung.com/spring-factorybean) - [Constructor Dependency Injection in Spring](http://www.baeldung.com/constructor-injection-in-spring) - [Constructor Injection in Spring with Lombok](http://www.baeldung.com/spring-injection-lombok)