Java SE 11: Inheritance, Polymorphism, & Abstraction

Java SE 11
  • 10 Videos | 45m 52s
  • Includes Assessment
  • Earns a Badge
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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

  • 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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