OOP

Fixed

src/main/java/core/basesyntax/Bulldozer.java

@@ -1,13 +1,14 @@
 package core.basesyntax;
 
-public class Bulldozer extends Machine{
+public class Bulldozer extends Machine {
     @Override
     public void doWork() {
+        System.out.println("Bulldozer started it's work.");
 
     }
 
     @Override
     public void stopWork() {
-
+        System.out.println("Bulldozer stopped it's work.");
     }
 }

src/main/java/core/basesyntax/Excavator.java

@@ -3,11 +3,11 @@
 public class Excavator extends Machine {
     @Override
     public void doWork() {
-
+        System.out.println("Excavator started its work.");
     }
 
     @Override
     public void stopWork() {
-
+        System.out.println("Excavator stopped its work.");
     }
 }

src/main/java/core/basesyntax/MainApp.java

@@ -2,11 +2,11 @@
 
 public class MainApp {
     public static void main(String[] args) {
-        Machine[] machines = {new Truck(), new Bulldozer(), new Excavator()};
+        Machine [] machines = {new Truck(), new Bulldozer(), new Excavator()};
 
         for (Machine machine : machines) {
             machine.doWork();
             machine.stopWork();
         }
     }
-}
+}

src/main/java/core/basesyntax/Truck.java

@@ -1,14 +1,13 @@
 package core.basesyntax;
 
 public class Truck extends Machine {
-
     @Override
     public void doWork() {
-
+        System.out.println("Truck started it's work.");
     }
 
     @Override
     public void stopWork() {
-
+        System.out.println("Truck stopped it's work.");
     }
 }