done

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) : Exception(message)

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

@@ -1,8 +1,13 @@
 package mate.academy.service
 
-// This class will validate password requirements
+import mate.academy.exception.PasswordValidationException
+
+const val PASSWORD_MIN_LENGTH = 10
+
 class PasswordValidator {
     fun validate(password: String, repeatPassword: String) {
-        // write your code here
+        if (password != repeatPassword || password.length < PASSWORD_MIN_LENGTH) {
+            throw PasswordValidationException("Wrong passwords")
+        }
     }
 }

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

@@ -1,16 +1,24 @@
 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 {
+    val validator = 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 {
-
+       try {
+           validator.validate(password, repeatPassword)
+           val user = User(username, password)
+           return saveUser(user)
+       } catch (_: PasswordValidationException) {
+           return "Your passwords are incorrect. Try again."
+       }
     }
 }