Create UserService.java

Signed-off-by: jeet041 <mahorjitendra@gmail.com>

src/main/java/org/springframework/samples/petclinic/UserService.java

@@ -0,0 +1,14 @@
+// File: UserService.java
+public class UserService {
+    public String getUserName(int userId) {
+        return "User" + userId;
+    }
+
+    public boolean isUserActive(int userId) {
+        return true;
+    }
+
+    public void updateUserStatus(int userId, boolean isActive) {
+        // update logic here
+    }
+}