diff --git a/src/main/java/core/basesyntax/Bulldozer.java b/src/main/java/core/basesyntax/Bulldozer.java
index f6c64daf3..ad701a041 100644
--- a/src/main/java/core/basesyntax/Bulldozer.java
+++ b/src/main/java/core/basesyntax/Bulldozer.java
@@ -1,4 +1,5 @@
 package core.basesyntax;
+
 public class Bulldozer extends Machine {
     public void doWork() {
         System.out.println("Bulldozer started its work");
diff --git a/src/main/java/core/basesyntax/Excavator.java b/src/main/java/core/basesyntax/Excavator.java
index 13f0dd509..6c75bec88 100644
--- a/src/main/java/core/basesyntax/Excavator.java
+++ b/src/main/java/core/basesyntax/Excavator.java
@@ -1,4 +1,5 @@
 package core.basesyntax;
+
 public class Excavator extends Machine {
     public void doWork() {
         System.out.println("Excavator started its work");
diff --git a/src/main/java/core/basesyntax/Machine.java b/src/main/java/core/basesyntax/Machine.java
index 70849b4f7..4219699a5 100644
--- a/src/main/java/core/basesyntax/Machine.java
+++ b/src/main/java/core/basesyntax/Machine.java
@@ -1,5 +1,7 @@
 package core.basesyntax;
+
 public abstract class Machine {
     public abstract void doWork();
+
     public abstract void stopWork();
 }
diff --git a/src/main/java/core/basesyntax/MainApp.java b/src/main/java/core/basesyntax/MainApp.java
index 8dd1a5acc..f40caabf9 100644
--- a/src/main/java/core/basesyntax/MainApp.java
+++ b/src/main/java/core/basesyntax/MainApp.java
@@ -1,4 +1,5 @@
 package core.basesyntax;
+
 public class MainApp {
     public static void main(String[] args) {
 
diff --git a/src/main/java/core/basesyntax/Truck.java b/src/main/java/core/basesyntax/Truck.java
index b5958a1a5..802949820 100644
--- a/src/main/java/core/basesyntax/Truck.java
+++ b/src/main/java/core/basesyntax/Truck.java
@@ -1,4 +1,5 @@
 package core.basesyntax;
+
 public class Truck extends Machine {
     public void doWork() {
         System.out.println("Truck started its work");