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Introduction to Inheritance

Introduction to Inheritance

James Brucker. Introduction to Inheritance. These slides cover only the basics of inheritance. What is Inheritance?. One class incorporates all the attributes and behavior from another class -- it inherits these attributes and behavior. SuperClass more general.

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670 views • 63 slides
Polymorphism

Polymorphism

Polymorphism. Polymorphism. We can invoke a behavior (method) without knowing what kind of object will perform the behavior. Many kinds of objects can perform the same behavior. Poly - morph = many forms. Object x = null; x = new Double(3.14);

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212 views • 21 slides
Object-oriented Programming in Java

Object-oriented Programming in Java

Object-oriented Programming in Java. What is OOP?. The goal is (subtype) polymorphism Achieved by Classes (user-defined types) Inheritance (is-a, substitutability) Dynamic Function Binding Function to run is bound according to the dynamic type of the object. Upcasting.

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294 views • 14 slides
CS100J 28 February 2008 Casting About

CS100J 28 February 2008 Casting About

CS100J 28 February 2008 Casting About. Casting between classes Apparent and real classes. Operator instanceof. The class hierarchy function equals. Study Secs 4.2 and 4.3 in text. After today, you have learned ALL the basics of classes,

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722 views • 12 slides
CS1110 9 October 2008 Casting About

CS1110 9 October 2008 Casting About

CS1110 9 October 2008 Casting About. Casting between classes Apparent and real classes. Operator instanceof. The class hierarchy function equals. Study Secs 4.2 and 4.3 in text. After today, you have learned ALL the basics of classes,

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263 views • 12 slides
Collections

Collections

Collections. Why collections?. Collections are used to hold a collection of objects. List holds objects based on order of insertion and can hold non unique collection Set holds objects without any order and are unique

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229 views • 12 slides
CS1110 26 February 2009 Casting About

CS1110 26 February 2009 Casting About

CS1110 26 February 2009 Casting About. Casting between classes Apparent and real classes. Operator instanceof. The class hierarchy function equals. Study Secs 4.2 and 4.3 in text. After today, you have learned ALL the basics of classes.

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127 views • 12 slides

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