Geeksforgeeks - Java Backend Development Page

Containerizing your Java applications for easy deployment.

@ExtendWith(MockitoExtension.class) class UserServiceTest @Mock private UserRepository repo; @InjectMocks private UserService service; @Test void testGetUserById() when(repo.findById(1L)).thenReturn(Optional.of(new User())); assertNotNull(service.getUser(1L)); GeeksForGeeks - JAVA Backend Development

Learning JUnit and Mockito to ensure your backend is bug-free. Containerizing your Java applications for easy deployment

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The journey to becoming a Java Backend Developer is a marathon, not a sprint. By following the roadmap—moving from Core Java to Spring Boot and Microservices—you are aligning yourself with the industry's highest standards. @InjectMocks private UserService service