- Chapter 21 – Collections - Purdue University
22 1 Introduction Java collections framework Contains prepackaged data structures, interfaces, algorithms for manipulating those data structures Examples of collections – hand of cards, software engineers working on same project, etc Collections – Use existing data structures without concern for how they are implemented Example of code
- Java Collections - University of Washington
Readings and References References "Collections", Java tutorial http: java sun com docs books tutorial collections index html Java 2 Collections A collection is an object that groups multiple elements into a single unit Very useful store, retrieve and manipulate data transmit data from one method to another data structures and methods written
- PowerPoint Presentation
Collections are used to store, retrieve, manipulate, and communicate aggregate data They typically represent data items that form a natural group, e g poker hand (a collection of cards), a mail folder (a collection of letters), or a telephone directory (a mapping from names to phone numbers)
- Sets and Maps - UMass Boston CS
Sets and Maps in Java Collections API TreeSet TreeMap Review for Exam Reading: 13 1-13 6
- CSE1301 - Kennesaw State University
Refers to the type of data a variable is storing Knowing the data type lets us know what information a variable could be storing It also lets us know the type of the result of an operation could be In some programming languages, types also tell us how much space in memory is being used
- Introduction to Java 2 Programming
Java Collections What are they? A number of pre-packaged implementations of common ‘container’ classes, such as LinkedLists, Sets, etc Part of the java util package
- PowerPoint Presentation
Leads to collections advocacy and increased use of collections and data
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