'Public string tostring' diaporamas de présentation

Chapter 9 - Object-Oriented Programming

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Chapter 9 - Object-Oriented Programming

1.51k views • 131 slides

Chapter 3 - Object-Oriented Programming: Inheritance

Chapter 3 - Object-Oriented Programming: Inheritance. Outline 3.1 Introduction 3.2 Superclasses and Subclasses 3.3 protected Members 3.4 Relationship between Superclasses and Subclasses 3.5 Case Study: Three-Level Inheritance Hierarchy

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Object Oriented Programming

UCT Department of Computer Science Computer Science 1015F. Object Oriented Programming. Hussein Suleman <hussein@cs.uct.ac.za> March 2007. Objects. Objects are computer representations of real-world objects. e.g., aPerson, timTheTurtle, planetEarth

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TCSS 143, Autumn 2004 Lecture Notes

TCSS 143, Autumn 2004 Lecture Notes. Inheritance. Inheritance: Definition. inheritance : a parent-child relationship between classes allows sharing of the behavior of the parent class into its child classes

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Java 5 : New Features ( t.k.prasad@wright )

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Exceptions

Exceptions. An exception is an object that describes an unusual or erroneous situation Exceptions are thrown by a program, and may be caught and handled by another part of the program. Exception Hierarchy. Errors:

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Lecture 14: Introduction to Classes and Objects

Lecture 14: Introduction to Classes and Objects. CS201. Abstraction. Some definitions of Abstract (adjective): Considered apart from any application to a particular object; removed from; apart from; separate ; abstracted . ?

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438 views • 32 slides

????? 1 ???? Java

????? 1 ???? Java. ????? ???? 9 : ?????? ????? ?????? ??? ?????? ???? ????. ??? ???? ????? ????? ?????????? ?? ????. Today. Static vs. Dynamic binding Equals / hashCode String Immutability (maybe). 2. Static versus run-time binding. public class Account {

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Chapter 14 - Inheritance and Polymorphism

Chapter 14 - Inheritance and Polymorphism. The Object Class The equals Method The toString Method Polymorphism Dynamic Binding Compilation Details Polymorphism with Arrays Abstract Methods And Classes. The Object Class. The Object class is a superclass for all other classes.

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Polymorphism

Polymorphism. signatures. in any programming language, a signature is what distinguishes one function or method from another in C, every function has to have a different name in Java, two methods have to differ in their names, or in the number or types of their parameters

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Polymorphism

Polymorphism. signatures. in any programming language, a signature is what distinguishes one function or method from another in C, every function has to have a different name in Java, two methods have to differ in their names, or in the number or types of their parameters

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CS/ENGRD 2110 Fall 2013

CS/ENGRD 2110 Fall 2013. Lecture 4: The class hierarchy; static components http://courses.cs.cornell.edu/cs2110. R eferences to text and JavaSummary.pptx. A bit about testing and test cases Class Object, superest class of them all. Text: C.23 slide 30

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9.5 Case Study: Three-Level Inheritance Hierarchy

9.5 Case Study: Three-Level Inheritance Hierarchy. Three level point/circle/cylinder hierarchy Point x-y coordinate pair Circle x-y coordinate pair Radius Cylinder x-y coordinate pair Radius Height. Class Cylinder extends class Circle4 .

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Computer Science A 14: 31/3

Computer Science A 14: 31/3. CS A. Inheritence. You can extend a class or change behaviour. Inheritance is a method to reuse code. Concept. Extending classes with fields and methods Late binding Casting objects. Example. class Point{ int x; int y; Point(int x,int y){

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CS100J Classes, stepwise refinement 25 February 2007

CS100J Classes, stepwise refinement 25 February 2007. CMS allows you to submit an assignment several times. We grade only the last one submitted (but access to all of them). Miscellaneous points about classes. More on stepwise refinement. Prelim 7:30-9:00 Thursday, 22 Feb.

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CS1110 Classes, stepwise refinement 12 Feb 2009

CS1110 Classes, stepwise refinement 12 Feb 2009. Miscellaneous points about classes. More on stepwise refinement. Next time: Wrapper classes. Read Section 5.1 of class text. Prelim 7:30-9:00 Thursday, 19 Feb., Baker Lab 200 Review session: 1:00-3:00, Sunday, 15 Feb., Philips 101.

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Character Strings

Character Strings. class String class StringBuffer (Java 1.4 and before : thread-safe) class StringBuilder (Java 5 : thread-unsafe) (Cf. array of characters) Based on 2-byte Unicode characters. immutable contents of String instance unchangeable cannot insert or append characters

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202 views • 8 slides