From 99bc203b2f0f94179338d3ded52d2a97fca10e13 Mon Sep 17 00:00:00 2001
From: Oleh Makarytskyi <olleglion02@gmail.com>
Date: Wed, 6 May 2026 20:30:49 +0300
Subject: [PATCH] added machines

---
 src/main/java/core/basesyntax/Bulldozer.java | 12 ++++++++++++
 src/main/java/core/basesyntax/Excavator.java | 12 ++++++++++++
 src/main/java/core/basesyntax/Machine.java   |  7 +++++++
 src/main/java/core/basesyntax/MainApp.java   | 10 ++++++++++
 src/main/java/core/basesyntax/Truck.java     | 12 ++++++++++++
 5 files changed, 53 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..9ec8c3d8b
--- /dev/null
+++ b/src/main/java/core/basesyntax/Bulldozer.java
@@ -0,0 +1,12 @@
+package core.basesyntax;
+
+public class Bulldozer extends Machine {
+
+    public void doWork() {
+        System.out.println("Bulldozer starts working");
+    }
+
+    public void stopWork() {
+        System.out.println("Bulldozer stops working");
+    }
+}
diff --git a/src/main/java/core/basesyntax/Excavator.java b/src/main/java/core/basesyntax/Excavator.java
new file mode 100644
index 000000000..da639bedd
--- /dev/null
+++ b/src/main/java/core/basesyntax/Excavator.java
@@ -0,0 +1,12 @@
+package core.basesyntax;
+
+public class Excavator extends Machine {
+
+    public void doWork() {
+        System.out.println("Excavator starts working");
+    }
+
+    public void stopWork() {
+        System.out.println("Excavator stops working");
+    }
+}
diff --git a/src/main/java/core/basesyntax/Machine.java b/src/main/java/core/basesyntax/Machine.java
new file mode 100644
index 000000000..cad5be453
--- /dev/null
+++ b/src/main/java/core/basesyntax/Machine.java
@@ -0,0 +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 f99e9a019..fa23083c9 100644
--- a/src/main/java/core/basesyntax/MainApp.java
+++ b/src/main/java/core/basesyntax/MainApp.java
@@ -1,5 +1,15 @@
 package core.basesyntax;
 
 public class MainApp {
+    public static void main(String[] args) {
+        Machine[] machines = new Machine[3];
+        machines[0] = new Bulldozer();
+        machines[1] = new Excavator();
+        machines[2] = new Truck();
 
+        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..2dca4aeaa
--- /dev/null
+++ b/src/main/java/core/basesyntax/Truck.java
@@ -0,0 +1,12 @@
+package core.basesyntax;
+
+public class Truck extends Machine {
+
+    public void doWork() {
+        System.out.println("Truck starts working");
+    }
+
+    public void stopWork() {
+        System.out.println("Truck stops working");
+    }
+}