@Autowired @Resource @Inject

@Autowired //Support from Spring
private LoginService logoutService; //LoginService type linked.
@Autowired
private LogoutService loginService; //LogoutService type linked.

@Inject //Support from JAVA
private LoginService logoutService; //LoginService type linked.
@Inject
private LogoutService loginService; //LogoutService type linked.

@Resource
private LoginService logoutService; 
// LogoutService type linked but data type is LoginService. An Error Occurs.
@Resource
private LogoutService loginService; 
// LoginService type linked but data type is LogoutService. An Error Occurs.

.