Task completed)

Author: Eugene-Yukhimenko

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

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

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

@@ -1,8 +1,17 @@
 package mate.academy.service
 
+import mate.academy.exception.PasswordValidationException
+
 // This class will validate password requirements
 class PasswordValidator {
+
+    companion object {
+        private const val MIN_PASSWORDS_LENGTH = 10
+    }
+
     fun validate(password: String, repeatPassword: String) {
-        // write your code here
+        if (password != repeatPassword || password.length < MIN_PASSWORDS_LENGTH) {
+            throw PasswordValidationException("Wrong passwords")
+        }
     }
 }

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

@@ -1,16 +1,26 @@
 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 {
+            passwordValidator.validate(password, repeatPassword)
+
+            val user = User(username = username,
+                            password = password)
 
+            saveUser(user)
+        } catch (e: PasswordValidationException) {
+            "Your passwords are incorrect. Try again."
+        }
     }
 }