Core Java. OOP Fundamentals. // Encapsulation — private fields, public getters/setters public class User { private String name; private String email; private int age; public User(String name, String email, int age) { thi…
ReadSpring Boot. Controllers & Services. // REST Controller @RestController @RequestMapping("/api/users") @RequiredArgsConstructor public class UserController { private final UserService userService; @GetMapping public Respo…
ReadJava & Spring Boot Interview Questions. Q: What is the difference between == and equals() in Java?. == compares object references (memory address) for objects, or values for primitives. equals() compares object content (…
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