Inheritance

Notes on Inheritance (First set)

• Inherited state and methods are not repeated in subclass.
• Subclass constructor invokes superclass constructor with super() "method" to initialize inherited state.
• A redefined method (same signature, new body) overrides method from superclass; redefined method is executed instead.

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• private: instance variables & methods cannot be accessed/used directly by the subclass
• public: can be accessed/used by subclass (or anyone)
• protected: accessible to class and its subclasses, but not to other classes (new keyword)