Created the Bulldozer class.

Created the Excavator class.
Created the Truck class.
Created the abstract Machine class.
Created two empty abstract methods and overridden them.
Created an instance of the Machine class and displayed information about the transport through a for-each loop

src/test/java/core/basesyntax/MainAppTest.java

@@ -17,10 +17,6 @@ public static void main(String[] args) {
         for (Machine machine : machines) {
             machine.doWork();
             machine.stopWork();
-
-
         }
-
     }
-
 }