diff --git a/app/src/main/java/ru/myitschool/work/data/dto/QrDto.java b/app/src/main/java/ru/myitschool/work/data/dto/QrDto.kt
similarity index 100%
rename from app/src/main/java/ru/myitschool/work/data/dto/QrDto.java
rename to app/src/main/java/ru/myitschool/work/data/dto/QrDto.kt
diff --git a/app/src/main/java/ru/myitschool/work/domain/entities/QrEntity.java b/app/src/main/java/ru/myitschool/work/domain/entities/QrEntity.kt
similarity index 100%
rename from app/src/main/java/ru/myitschool/work/domain/entities/QrEntity.java
rename to app/src/main/java/ru/myitschool/work/domain/entities/QrEntity.kt
diff --git a/app/src/main/java/ru/myitschool/work/domain/entities/UserEntity.java b/app/src/main/java/ru/myitschool/work/domain/entities/UserEntity.kt
similarity index 100%
rename from app/src/main/java/ru/myitschool/work/domain/entities/UserEntity.java
rename to app/src/main/java/ru/myitschool/work/domain/entities/UserEntity.kt
diff --git a/app/src/main/java/ru/myitschool/work/domain/login/IsUserExistUseCase.java b/app/src/main/java/ru/myitschool/work/domain/login/IsUserExistUseCase.kt
similarity index 100%
rename from app/src/main/java/ru/myitschool/work/domain/login/IsUserExistUseCase.java
rename to app/src/main/java/ru/myitschool/work/domain/login/IsUserExistUseCase.kt
diff --git a/app/src/main/java/ru/myitschool/work/domain/login/LoginRepository.java b/app/src/main/java/ru/myitschool/work/domain/login/LoginRepository.kt
similarity index 100%
rename from app/src/main/java/ru/myitschool/work/domain/login/LoginRepository.java
rename to app/src/main/java/ru/myitschool/work/domain/login/LoginRepository.kt
diff --git a/app/src/main/java/ru/myitschool/work/domain/qr/PushQrUseCase.java b/app/src/main/java/ru/myitschool/work/domain/qr/PushQrUseCase.kt
similarity index 100%
rename from app/src/main/java/ru/myitschool/work/domain/qr/PushQrUseCase.java
rename to app/src/main/java/ru/myitschool/work/domain/qr/PushQrUseCase.kt
diff --git a/app/src/main/java/ru/myitschool/work/domain/qr/QrRepository.java b/app/src/main/java/ru/myitschool/work/domain/qr/QrRepository.kt
similarity index 100%
rename from app/src/main/java/ru/myitschool/work/domain/qr/QrRepository.java
rename to app/src/main/java/ru/myitschool/work/domain/qr/QrRepository.kt
diff --git a/app/src/main/java/ru/myitschool/work/domain/user/UserRepository.java b/app/src/main/java/ru/myitschool/work/domain/user/UserRepository.kt
similarity index 100%
rename from app/src/main/java/ru/myitschool/work/domain/user/UserRepository.java
rename to app/src/main/java/ru/myitschool/work/domain/user/UserRepository.kt