Changes in UserController

src/main/java/com/example/demo/controller/UserController.java

@@ -0,0 +1,28 @@
+@RestController
+clsass UserController {
+
+    @GetMapping("/users")
+    public List<User> getAllUsers() {
+        // Logic to retrieve all users
+    }
+
+    @PostMapping("/users")
+    public User createUser(@RequestBody User user) {
+        // Logic to create a new user
+    }
+
+    @GetMapping("/users/{id}")
+    public User getUserById(@PathVariable Long id) {
+        // Logic to retrieve a user by ID
+    }
+
+    @PutMapping("/users/{id}")
+    public User updateUser(@PathVariable Long id, @RequestBody User user) {
+        // Logic to update a user by ID
+    }
+
+    @DeleteMapping("/users/{id}")
+    public void deleteUser(@PathVariable Long id) {
+        // Logic to delete a user by ID
+    }
+}