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… Truck, Bulldozer, Excavator usage in MainApp loop
mateacademy-ai-mentor
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Feb 5, 2026
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Review Summary
Excellent work on this task! Your solution is a perfect demonstration of core object-oriented principles like abstraction, inheritance, and polymorphism. The class structure is well-designed, with the Machine abstract class providing a solid foundation for the specific machine types. Your MainApp correctly uses an array of the abstract Machine type to manage different objects, which is a great example of polymorphism in action. The code is clean, correct, and meets all requirements, so I am gladly approving your solution. Keep up the fantastic work!
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