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Copyright © 2003, Manu Kumar
Programming in Java Lecture 3Collections and More OOP
Ahmed Khademzadeh
khademzadeh@mshdiau.ac.ir
Azad University of Mashhad
(Lecture powerpoint slides provided by Manu Kumar - Stanford University)
Copyright © 2003, Manu Kumar
Recap
Last time (a somewhat jumpy introduction to…)
OOP in Java (Student Example)
Explore more Java features
Primitives
Arrays
Multi-Dimensional Arrays
String Class
StringBuffer Class
Static keyword
OOP Design
Encapsulation
Interface vs. Implementation
Client Oriented Design
Copyright © 2003, Manu Kumar
Today
Java Collections
ArrayList example
OOP
Inheritance
Grad example
Abstract Superclasses
Account example
Java Interfaces
Copyright © 2003, Manu Kumar
Collections
Built-in support for collections
Similar to STL in C++
Collection type
Sequence/Set
Example ArrayList
Map type
Hashtable/dictionary
Example HashMap
Collections store pointers to objects!
Use inheritance and interfaces
Read
http://java.sun.com/docs/books/tutorial/collections