Inheritance: Overriding

• Can override public superclass methods
• Can override protected superclass methods (must remain protected or become public)
• Cannot override private superclass methods, but can create a new version for the subclass (i.e., both will exist)
• protected: subclass and package access
• final class: Cannot be extended; methods cannot be overridden
• final method : cannot be overridden
• static method: cannot be overridden
• Abstract methods: must be overriden (otherwise subclass abstract)
• super: Used to retrieve superclass variable and method (dynamic lookup turned off) from subclass; can occur anywhere (cf. super() in constructors); adding to superclass method functionality in overriding subclass method body
• Example: