From 50121432f7c4149efe9320241e3e63bfab3152c5 Mon Sep 17 00:00:00 2001
From: Czarny039 <nnowak.michal95@gmail.com>
Date: Tue, 5 Aug 2025 12:55:26 +0200
Subject: [PATCH 1/4] Add files via upload

---
 MainApp.java | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 MainApp.java

diff --git a/MainApp.java b/MainApp.java
new file mode 100644
index 000000000..95e0f70ee
--- /dev/null
+++ b/MainApp.java
@@ -0,0 +1,17 @@
+package core.basesyntax;
+
+public class MainApp {
+    
+    public static void main(String[] args) {
+    Machine[] machines = {
+            new Truck(),
+            new Bulldozer(),
+            new Excavator()
+        };
+        for (Machine machine : machines) {
+            machine.doWork();   
+            machine.stopWork(); 
+            System.out.println("--------------------"); 
+        }
+    }
+}

From d23d6cc31a6659600872326c49a3c4ba9584b78d Mon Sep 17 00:00:00 2001
From: Czarny039 <nnowak.michal95@gmail.com>
Date: Tue, 5 Aug 2025 13:04:08 +0200
Subject: [PATCH 2/4] Add files via upload

---
 MainApp1.java | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 MainApp1.java

diff --git a/MainApp1.java b/MainApp1.java
new file mode 100644
index 000000000..95e0f70ee
--- /dev/null
+++ b/MainApp1.java
@@ -0,0 +1,17 @@
+package core.basesyntax;
+
+public class MainApp {
+    
+    public static void main(String[] args) {
+    Machine[] machines = {
+            new Truck(),
+            new Bulldozer(),
+            new Excavator()
+        };
+        for (Machine machine : machines) {
+            machine.doWork();   
+            machine.stopWork(); 
+            System.out.println("--------------------"); 
+        }
+    }
+}

From a28cf0c7e45820fc41993e29b8515a0db91de4e0 Mon Sep 17 00:00:00 2001
From: Czarny039 <nnowak.michal95@gmail.com>
Date: Tue, 5 Aug 2025 13:19:10 +0200
Subject: [PATCH 3/4] Add files via upload

---
 MainApp.java | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/MainApp.java b/MainApp.java
index 95e0f70ee..252060edf 100644
--- a/MainApp.java
+++ b/MainApp.java
@@ -1,17 +1,5 @@
 package core.basesyntax;
 
 public class MainApp {
-    
-    public static void main(String[] args) {
-    Machine[] machines = {
-            new Truck(),
-            new Bulldozer(),
-            new Excavator()
-        };
-        for (Machine machine : machines) {
-            machine.doWork();   
-            machine.stopWork(); 
-            System.out.println("--------------------"); 
-        }
-    }
+     
 }

From f0e80f3c3990ffe4ab4acd179e8c5d386b433b9e Mon Sep 17 00:00:00 2001
From: Czarny039 <nnowak.michal95@gmail.com>
Date: Tue, 5 Aug 2025 13:56:22 +0200
Subject: [PATCH 4/4] Add files via upload

---
 MainApp.java                                  | 14 +++++++++++++-
 public abstract class Machine {.java          |  6 ++++++
 public class Bulldozer extends Machine {.java | 14 ++++++++++++++
 public class Excavator extends Machine {.java | 14 ++++++++++++++
 public class Truck extends Machine {.java     | 14 ++++++++++++++
 5 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 public abstract class Machine {.java
 create mode 100644 public class Bulldozer extends Machine {.java
 create mode 100644 public class Excavator extends Machine {.java
 create mode 100644 public class Truck extends Machine {.java

diff --git a/MainApp.java b/MainApp.java
index 252060edf..95e0f70ee 100644
--- a/MainApp.java
+++ b/MainApp.java
@@ -1,5 +1,17 @@
 package core.basesyntax;
 
 public class MainApp {
-     
+    
+    public static void main(String[] args) {
+    Machine[] machines = {
+            new Truck(),
+            new Bulldozer(),
+            new Excavator()
+        };
+        for (Machine machine : machines) {
+            machine.doWork();   
+            machine.stopWork(); 
+            System.out.println("--------------------"); 
+        }
+    }
 }
diff --git a/public abstract class Machine {.java b/public abstract class Machine {.java
new file mode 100644
index 000000000..f377fe04b
--- /dev/null
+++ b/public abstract class Machine {.java	
@@ -0,0 +1,6 @@
+package core.basesyntax;
+
+public abstract class Machine {
+     public abstract void doWork();
+     public abstract void stopWork();
+}
\ No newline at end of file
diff --git a/public class Bulldozer extends Machine {.java b/public class Bulldozer extends Machine {.java
new file mode 100644
index 000000000..bf19cb4a6
--- /dev/null
+++ b/public class Bulldozer extends Machine {.java	
@@ -0,0 +1,14 @@
+package core.basesyntax;
+
+public class Bulldozer extends Machine {
+
+    @Override
+    public void doWork() {
+        System.out.println("Bulldozer started its work.");
+    }
+
+    @Override
+    public void stopWork() {
+        System.out.println("Bulldozer stopped working.");
+    }
+}
\ No newline at end of file
diff --git a/public class Excavator extends Machine {.java b/public class Excavator extends Machine {.java
new file mode 100644
index 000000000..4a411ee9e
--- /dev/null
+++ b/public class Excavator extends Machine {.java	
@@ -0,0 +1,14 @@
+package core.basesyntax;
+
+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 working.");
+    }
+}
\ No newline at end of file
diff --git a/public class Truck extends Machine {.java b/public class Truck extends Machine {.java
new file mode 100644
index 000000000..4d1f69912
--- /dev/null
+++ b/public class Truck extends Machine {.java	
@@ -0,0 +1,14 @@
+package core.basesyntax;
+
+public class Truck extends Machine {
+
+    @Override
+    public void doWork() {
+        System.out.println("Truck started its work.");
+    }
+
+    @Override
+    public void stopWork() {
+        System.out.println("Truck stopped working.");
+    }
+}
\ No newline at end of file