Java Object

Subclass inherits protected and public members of parent no matter in which package is the subclass. If subclass and parent are in same package then package-private members are also inherited. Inherited members could be used to hide them, replace them or supplement them, with newer members:

• Just the way other fields do, inherited fields can also be directly used.
• A field can be declared in subclass with similar name just like that present in superclass hence hiding it (which isn’t recommended)
• New fields can be declared in subclass which are absent in superclass.
• Use inherited methods direcly.
• New instance method could be written in subclass which has similar sign just like that one present in superclass. Hence override it.
• New static method could be written in subclass which has similar sign as that of which is present in superclass. Hence hiding it.
• In the subclass, new methods could be declared which are not there in superclass.
• Subclass constructor could be written to invoke the superclass constructor either by keyword super or implicitly.