Java SE 11: Inheritance, Polymorphism, & Abstraction
Java SE 11
10 Videos | 45m 52s - Includes Assessment
- Earns a Badge
Examine the methods of polymorphism, inheritance and abstraction, in Java. During this course, you will discuss inheritance in the context of a Java class hierarchy. See how to create a subclass. Override a method in the superclass. Use the SUPER keyword, to reference the superclass. Discover Polymorphism. Cast a superclass reference to the subclass type. Test an object's type, with the INSTANCEOF operator. Contrast Abstract and Non-Abstract Classes. Finally, extend an abstract class and form a class hierarchy.
WHAT YOU WILL LEARN
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define inheritance in the context of a Java class hierarchy
create a subclass
override a method in the superclass
use the super keyword to reference the superclass
define polymorphism -
cast a superclass reference to the subclass type
use the instanceof operator to test an object's type
explain the difference between abstract and non-abstract classes
create a class hierarchy by extending an abstract class
override a method in the superclass
IN THIS COURSE
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1.Java Class Hierarchy and Inheritance4m 20s
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2.Creating Subclasses5m 31s
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3.Overriding Methods in the Superclass4m 13s
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4.Using the super Keyword5m 5s
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5.Polymorphism4m 31s
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6.Casting Superclass References4m 21s
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7.Using the instanceof Operator3m 17s
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8.Contrasting Abstract and Non-Abstract Classes3m 24s
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9.Extending an Abstract Class4m 8s
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10.Exercise: Overriding Methods2m 33s
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