LESSON 3 PART 1

INHERITANCE

IS A TECHNIQUE IN OOP WHERE A CLASS P IS USED AS BASIS FOR CREATING ANOTHER CLASS C SUCH THAT ALL STATES AND BEHAVIORS OF P ARE IMPLICITLY TRANSFERRED TO C.

SUPERCLASS

IS CALLED THE PARENT/BASE CLASS.

SUBLCASS

IS CALLED THE CHILD/DERIVED CLASS.

PROTECTED MODIFIER

MEMBERS OF P THAT CAN BE VISIBLE IN C BUT NOT NECESSARILY VISIBLE TO OTHER CLASSES.

EXTENDS

USING THIS MODIFIER, A CLASS CAN INHERIT FROM ANOTHER.

OVERRIDING

A SUBCLASS CAN IMPLEMENT ITS OWN VERSION OF ANY NON-PRIVATE INHERITED METHOD THEREBY CHANGING ITS BEHAVIOR.

SUPER KEYWORD

A SUBCLASS CAN USE ANY VISIBLE ATTRIBUTE AND METHOD FROM ITS SUPERCLASS USING THIS.

SINGLE INHERITANCE

WHEN A CLASS INHERITS ANOTHER CLASS.

MULTI-LEVEL INHERITANCE

WHEN A CLASS IS DERIVED FROM ANOTHER CLASS, WHICH IS ALSO DERIVED FROM ANOTHER CLASS.

HIERARCHICAL INHERITANCE

MULTIPLE SUBCLASSES INHERIT FROM THE SAME SUPERCLASS.