completed the task

Author: Dimon19888

src/main/kotlin/mate/academy/exception/PasswordValidationException.kt

@@ -1,3 +1,4 @@
 package mate.academy.exception
 
 // Provide your code here for PasswordValidationException class
+class PasswordValidationException(message: String) : Exception(message)

src/main/kotlin/mate/academy/service/PasswordValidator.kt

@@ -1,8 +1,19 @@
 package mate.academy.service
 
+import mate.academy.exception.PasswordValidationException
+
 // This class will validate password requirements
 class PasswordValidator {
+
+    companion object {
+        private const val MIN_PASSWORD_LENGTH = 10
+    }
+    @Throws(PasswordValidationException::class)
     fun validate(password: String, repeatPassword: String) {
+
+        if (password != repeatPassword || password.length < MIN_PASSWORD_LENGTH) {
+            throw PasswordValidationException("Wrong passwords")
+        }
         // write your code here
     }
 }

src/main/kotlin/mate/academy/service/UserService.kt

@@ -1,16 +1,29 @@
 package mate.academy.service
 
+import mate.academy.exception.PasswordValidationException
 import mate.academy.model.User
 
 // This class represents a user service with user registration functionality
 class UserService {
+    private val passwordValidator = PasswordValidator()
 
     fun saveUser(user: User) : String {
         // This is where you would typically save the user to a database
         return "User ${user.username} saved successfully."
     }
 
     fun registerUser(username: String, password: String, repeatPassword: String) : String {
+            return try {
+                // Викликаємо валідацію
+                passwordValidator.validate(password, repeatPassword)
+
+                // Якщо валідація пройшла успішно, створюємо об'єкт і зберігаємо
+                val user = User(username, password)
+                saveUser(user)
+            } catch (e: PasswordValidationException) {
+                // Обробка випадку, якщо паролі невірні
+                "Your passwords are incorrect. Try again."
+            }
 
     }
 }