Created project for MateAcademy

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

@@ -0,0 +1,14 @@
+package core.basesyntax;
+
+public class Bulldozer extends Machine {
+@Override
+public void doWork() {
+    System.out.println("Bulldozer do work");
+}
+@Override
+public void stopWork() {
+    System.out.println("Bulldozer stoped work");
+}
+}
+
+

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

@@ -0,0 +1,12 @@
+package core.basesyntax;
+
+public class Excavator extends Machine {
+@Override
+public void doWork() {
+    System.out.println("Excavator do work");
+}
+@Override
+public void stopWork() {
+    System.out.println("Excavator stoped work");
+}
+}

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

@@ -0,0 +1,6 @@
+package core.basesyntax;
+
+public class Machine {
+    public abstract void doWork() {};
+    public abstract void stopWork() {};
+}

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

@@ -1,5 +1,9 @@
 package core.basesyntax;
 
 public class MainApp {
-
+Machine[] machines = new Machine[] {new Truck(), new Bulldozer(), new Excavator()};
+for (int i = 0;i < machine.length;i++) {
+    System.out.println(machine[i].doWork());
+    System.out.println(machine[i].stopWork());
+}
 }

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

@@ -0,0 +1,14 @@
+package core.basesyntax;
+
+public class Truck extends Machine {
+    @Override
+public void doWork() {
+    System.out.println("Truck do work");
+}
+@Override
+public void stopWork() {
+    System.out.println("Truck stoped work");
+}
+}
+
+