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IFS410 Advanced Analysis and Design. Week 1 Introduction to Java: Applications. 1. 1. Introduction. Object-Oriented Programming

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ifs410 advanced analysis and design

IFS410Advanced Analysis and Design

Week 1

Introduction to Java:

Applications

1.1

introduction
Introduction
  • Object-Oriented Programming
    • OOP is more than learning a new language; it requires a new way of thinking. We must no longer think in terms of data structures - we must think in terms of objects.
    • Many languages claim to have "Support for Object Technologies!"

1.2

slide3
Java
  • The JavaTM programming language is designed to meet the challenges of application development in the context of heterogeneous, network-wide distributed environments.
different kinds of java
Different Kinds of Java
  • Java Applications
  • Java Applets
  • Java Script
  • Java Server Pages
  • Java Servlet technology
  • Java Beans
object
Object
  • An object is a software bundle of variables and related methods.
  • Attribute (State) and Behavior (Method)
  • Message
class
Class

06/05/2002

2.7

class body
Class Body
  • Constructor
  • Declarations for the Variables
  • Methods to implement the behavior
declaring member variables
Declaring Member Variables
  • A class\'s state is represented by its member variables.
  • You declare a class\'s member variables in the body of the class.
understanding instance and class members
Understanding Instance and Class Members
  • By default, unless otherwise specified, a member declared within a class is an instance member.
  • To specify that a member variable is a class variable, use the static keyword.
japplet class
JApplet Class
  • JApplet is a subclass of java.awt.Applet
  • javax.swing.JApplet
  • JApplet -- a class that enables applets to use Swing components
  • init(), start(), paint(), (stop(), destroy())
  • Details in Chapter 20
lab activities week 1
Lab activities (Week 1)
  • Tutorial 1 (JCreator) –Assignment 1
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