From 4b8240a0ea352076cf04a86d702eb507899b1e70 Mon Sep 17 00:00:00 2001
From: DmytroNikolenko <dmitriyn3679@gmail.com>
Date: Fri, 5 Sep 2025 09:25:16 +0300
Subject: [PATCH 1/3] done

---
 src/main/java/core/basesyntax/Bulldozer.java | 13 +++++++++++++
 src/main/java/core/basesyntax/Excavator.java | 13 +++++++++++++
 src/main/java/core/basesyntax/Machine.java   |  6 ++++++
 src/main/java/core/basesyntax/MainApp.java   | 11 +++++++++++
 src/main/java/core/basesyntax/Truck.java     | 13 +++++++++++++
 5 files changed, 56 insertions(+)
 create mode 100644 src/main/java/core/basesyntax/Bulldozer.java
 create mode 100644 src/main/java/core/basesyntax/Excavator.java
 create mode 100644 src/main/java/core/basesyntax/Machine.java
 create mode 100644 src/main/java/core/basesyntax/Truck.java

diff --git a/src/main/java/core/basesyntax/Bulldozer.java b/src/main/java/core/basesyntax/Bulldozer.java
new file mode 100644
index 000000000..445ad5ec9
--- /dev/null
+++ b/src/main/java/core/basesyntax/Bulldozer.java
@@ -0,0 +1,13 @@
+package core.basesyntax;
+
+public class Bulldozer extends Machine {
+    @Override
+    public void doWork() {
+        System.out.println("Bulldozer has started to work");
+    }
+
+    @Override
+    public void stopWork() {
+        System.out.println("Bulldozer has stopped");
+    }
+}
diff --git a/src/main/java/core/basesyntax/Excavator.java b/src/main/java/core/basesyntax/Excavator.java
new file mode 100644
index 000000000..5840273c7
--- /dev/null
+++ b/src/main/java/core/basesyntax/Excavator.java
@@ -0,0 +1,13 @@
+package core.basesyntax;
+
+public class Excavator extends Machine {
+    @Override
+    public void doWork() {
+        System.out.println("Excavator has started to work");
+    }
+
+    @Override
+    public void stopWork() {
+        System.out.println("Excavator has stopped");
+    }
+}
diff --git a/src/main/java/core/basesyntax/Machine.java b/src/main/java/core/basesyntax/Machine.java
new file mode 100644
index 000000000..5a62715c2
--- /dev/null
+++ b/src/main/java/core/basesyntax/Machine.java
@@ -0,0 +1,6 @@
+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 f99e9a019..4a7a0538e 100644
--- a/src/main/java/core/basesyntax/MainApp.java
+++ b/src/main/java/core/basesyntax/MainApp.java
@@ -1,5 +1,16 @@
 package core.basesyntax;
 
 public class MainApp {
+    public static void main(String[] args) {
+        Truck truck = new Truck();
+        Bulldozer bulldozer = new Bulldozer();
+        Excavator excavator = new Excavator();
 
+        Machine[] machines = {truck, bulldozer, excavator};
+
+        for (Machine machine : machines) {
+            machine.doWork();
+            machine.stopWork();
+        }
+    }
 }
diff --git a/src/main/java/core/basesyntax/Truck.java b/src/main/java/core/basesyntax/Truck.java
new file mode 100644
index 000000000..567eaee97
--- /dev/null
+++ b/src/main/java/core/basesyntax/Truck.java
@@ -0,0 +1,13 @@
+package core.basesyntax;
+
+public class Truck extends Machine {
+    @Override
+    public void doWork() {
+        System.out.println("Truck has started to work");
+    }
+
+    @Override
+    public void stopWork() {
+        System.out.println("Truck has stopped");
+    }
+}

From 30fa20b10f0524ca6b5f82c0e5f33b289ca3e591 Mon Sep 17 00:00:00 2001
From: DmytroNikolenko <dmitriyn3679@gmail.com>
Date: Fri, 5 Sep 2025 09:27:59 +0300
Subject: [PATCH 2/3] fix

---
 src/main/java/core/basesyntax/Machine.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main/java/core/basesyntax/Machine.java b/src/main/java/core/basesyntax/Machine.java
index 5a62715c2..cad5be453 100644
--- a/src/main/java/core/basesyntax/Machine.java
+++ b/src/main/java/core/basesyntax/Machine.java
@@ -2,5 +2,6 @@
 
 public abstract class Machine {
     public abstract void doWork();
+
     public abstract void stopWork();
 }

From c06715a9a5745aa090e18186fcd098ac9bd52bef Mon Sep 17 00:00:00 2001
From: DmytroNikolenko <dmitriyn3679@gmail.com>
Date: Fri, 5 Sep 2025 09:31:01 +0300
Subject: [PATCH 3/3] fix

---
 src/main/java/core/basesyntax/MainApp.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/main/java/core/basesyntax/MainApp.java b/src/main/java/core/basesyntax/MainApp.java
index 4a7a0538e..f5e32148c 100644
--- a/src/main/java/core/basesyntax/MainApp.java
+++ b/src/main/java/core/basesyntax/MainApp.java
@@ -2,9 +2,9 @@
 
 public class MainApp {
     public static void main(String[] args) {
-        Truck truck = new Truck();
-        Bulldozer bulldozer = new Bulldozer();
-        Excavator excavator = new Excavator();
+        Machine truck = new Truck();
+        Machine bulldozer = new Bulldozer();
+        Machine excavator = new Excavator();
 
         Machine[] machines = {truck, bulldozer, excavator};