Reference type casting: expansion and contraction. type cast
Dynamic Method Dispatch
Access to base class methods - super
instanceof
Method Overloading
Abstract classes
Interfaces
What else can you watch in your spare time: Chapter "Polymorphism" in Thinking in Java Why do you need super - official version Here you can download a brief instruction on hotkeys in IntelliJ Idea
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What else can you watch in your spare time: Chapter "Polymorphism" in Thinking in Java Why do you need super - official version Here you can download a brief instruction on hotkeys in IntelliJ Idea