Merge branch 'new_branch' of https://github.com/VitaliyProgrammer/jv-oop

 into new_branch

src/main/java/core/basesyntax/Buldozer.java

@@ -0,0 +1,16 @@
+package org.example;
+
+public class Buldozer extends Machine
+{
+    @Override
+    public void doWork()
+    {
+        System.out.println("Bulldozer started its work.");
+    }
+
+    @Override
+    public void stopWork()
+    {
+        System.out.println("Bulldozer stopped working.");
+    }
+}

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

@@ -0,0 +1,16 @@
+package org.example;
+
+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.");
+    }
+}

src/main/java/core/basesyntax/Machine.java

@@ -0,0 +1,8 @@
+package org.example;
+
+abstract public class Machine
+{
+    public abstract void doWork();
+
+    public abstract void stopWork();
+}

src/main/java/core/basesyntax/Main.java

@@ -0,0 +1,18 @@
+package org.example;
+
+public class Main
+{
+    public static void main(String[] args)
+    {
+        Machine[] machines = { new Truck(), new Buldozer(), new Excavator() };
+
+        for (Machine car: machines)
+        {
+            car.doWork();
+            car.stopWork();
+            System.out.println("\n");
+        }
+    }
+
+
+}

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

@@ -0,0 +1,16 @@
+package org.example;
+
+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.");
+    }
+}

src/main/java/org/example/Buldozer.java

@@ -0,0 +1,16 @@
+package org.example;
+
+public class Buldozer extends Machine
+{
+    @Override
+    public void doWork()
+    {
+        System.out.println("Bulldozer started its work.");
+    }
+
+    @Override
+    public void stopWork()
+    {
+        System.out.println("Bulldozer stopped working.");
+    }
+}

src/main/java/org/example/Excavator.java

@@ -0,0 +1,16 @@
+package org.example;
+
+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.");
+    }
+}

src/main/java/org/example/Machine.java

@@ -0,0 +1,8 @@
+package org.example;
+
+abstract public class Machine
+{
+    public abstract void doWork();
+
+    public abstract void stopWork();
+}

src/main/java/org/example/Main.java

@@ -0,0 +1,16 @@
+package org.example;
+
+public class Main
+{
+    public static void main(String[] args)
+    {
+        Machine[] machines = {new Truck(), new Buldozer(), new Excavator()};
+
+        for (Machine car: machines)
+        {
+            car.doWork();
+            car.stopWork();
+            System.out.println("\n");
+        }
+    }
+}

src/main/java/org/example/Truck.java

@@ -0,0 +1,15 @@
+package org.example;
+
+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.");
+    }
+}