Indicates a required field FORUM DESCRIPTION ion and Polymorphism Abstraction Encapsulation 1. Class or Interface 2. Access Modifiers 1. Abstract Method 2. Abstract Class 3. Interface Default Public Private Protected OOP Concept upport Polymorphism Inheritance 1. Parent Child Concept 2. Types of inhertance 1. Compile Time or Static Polymorphism 2. Runtime or Dynamic Polymorphism Single Multilevel 3. Hierarchical on page 425, i sys that "the threepilrs f object oriented programming are encapsulation, inheritance, and poymorphism. Please explain what they are MESSAGE caps lock 11.8 Dynamic Binding 4 1.7 Polymorphism nlism means that a variable of a supertype can refer to a subtype object. polymor- Key erh hc hV bave already learned the first two. This section introduces polymorphism. Point phisth. erace relationship enables a subclass to inherit features from its superclass You The dfitional new features. A subclass is a specialization of its superclass; every instance lass is also an instance of its superclass, but not vice versa. For example, every a sub lass is also an instance of its superclass, but not vice versn. For example, every cometric object, but not every geometric object is a circle. Therefore. you can uss an instance of a subelass to a parameter of its superclass type. Consider the ri 11.5 LISTING 11.5 PolymorphismDemo.java publie class Prphi sDemo ( 2 ain method public static void main(Stringl] args) ( asshane Display circle and rectangle properties displayobject (new Circle(1, "red", false)); polymorphic call polymorphic cal 6displayobject (new Rectangle(1, 1, "black", true)): 9 Display geometric object properties 10 public static void displayobject (Geonetricobject object) ( 11 System.out.printin("Created on" object.getDateCreated) + Color is "object.getColor)) ass so that you ca 14 he Object cla Created on Mon Mar 09 19:25:20 EDT 2011. Color is white Created on Mon Mar 09 19:25:20 EDT 2011. Color is black describes the obe bject is an instaoe z ample, cosikrx The method displayobject (line 10) takes a parameter of the Geometricobject ype. You can invoke displayobject by passing any instance of Geometricobject e.p., new Circle(1, "red", false) and new Rectangle(1, 1, "black" false) in lines 5 and 6). An object of a subelass can be used wherever its superclass object is used. This is commonly known as polymorphism (from a Greek word meaning what is polymophi forms"). In simple terms, polymorphism means that a variable of a supertype can refer to a subtype object. the tostI What are the three pillars of object-oriented programming? What is polymorphism ile 11.8 Dynamic Binding A method can be implemented in several classes along the inheritance chain. The IVM decides which method is invoked at runtime tring () method is defined in the Obiect class and overridden in Geonetricobject. sider the following code: can be defined in a superclass and overridden in its subclass. For example, the Point toS Object o new Geometricobject) stem.out.println(o.toString)) t.prin ut