- Java Reference Guide
- Overview
- Table of Contents
- J2SE: Standard Java
- Java Windows NT Services
- Apache Velocity
- Advanced J2SE
- J2SE 1.5.0: "Tiger"
- Java SE 6
- Core Computer Science Principles in Java (Data Structures)
- Annotations
- Java Generics
- Java New I/O
- Java Sound
- Java Applets
- JavaFX
- Java SE Threading
- Resource Management Using Semaphores
- Java Atomic Operations
- JavaTemplate Pages
- Executing Templates with the JtpExecutor
- Java Cryptography Extensions (JCE)
- Java Database Connectivity (JDBC) API
- Jakarta Commons - Net Class Library
- Jakarta Commons HttpClient
- Apache POI
- Regular Expressions
- JavaMail
- Cool Tools
- Building an Really Simple Syndication (RSS) Java App
- Embedding JavaScript in Java with Rhino
- Logging with Log4J
- Inside Swing
- Swing Components
- SwingX
- Swing Styled Documents
- Web Rendering in Java Swing Applications
- Java Look-and-Feel Graphics Repository
- Java Media Framework
- Quicktime for Java
- Media in Java Review 2008
- Graphs and Charts
- Holiday Special: Electronic Greeting Card
- Media Framework: Presenter Application
- Standard Widget Toolkit
- JFace
- Java Performance Tuning
- J2EE Performance Tuning
- Caches and Pools
- Java Caching System
- Java Compression and Decompression
- Obfuscating Java Applications
- Continuous Integration New
- Load Testing
- Tomcat Clustering
- High Scalability with Terracotta New
- Enterprise Java Testing
- Automated Unit Testing with JUnit and Ant
- Unit Testing: Tips From The Trenches
- Custom Ant Tasks
- Extensible Markup Language (XML)
- Java Web Technologies
- Web Frameworks
- Struts 2
- Wicket
- JavaServer Faces
- Distributed Programming / RMI
- Servlet Filters
- Building a Robust Java Server
- J2EE: Enterprise Java
- Spring
- Spring 3
- Java Design Patterns
- Model-Driven Architecture
- XDoclet
- Hibernate
- Project Backup
- J2EE Project: Hands-On
- Enterprise Java Beans (EJB) 3.0
- Disaster Recovery
- Java Management Extensions (JMX)
- Service-Oriented Architecture
- Web Services
- RESTful Web Services
- Project: Building a Web Photo Gallery
- J2ME: Micro Java
- Specialized J2ME
- Optional Packages
- Other Java Technologies
- Derivatives and Competitors
- Java, Engineered for Integration
- Additional Resources
- The World of Java Tools
- Building Java Applications with Ant
- Managing Java Build Lifecycles with Maven
- Source Control with Subversion
- Inversion of Control and Dependency Injection
- Certification
- Roadmap: Becoming an Enterprise Java Developer
- Roadmap: Becoming an Enterprise Java Developer in 2007
- The Business of Enterprise Software
- JavaOne 2006
- JavaOne 2007
- JavaOne 2008 Wrap-Up
- JavaOne 2009 Wrap-Up
- How to Survive in a Turbulent Job Market
- How to Hire the Best Talent
- Unified Modeling Language (UML)
- Cloud Computing
- Enterprise Java in 2008 and Beyond
- Predictions for 2018
Java Compression and Decompression
Last updated Jan 1, 2004.
Have you ever tried opening a JAR file using WinZip or any other graphical ZIP file viewer or extractor? When Java files are grouped together and compressed into a JAR file, the form of compression used is ZIP.
Java provides you with the JAR tool (in the JRE's bin directory) to create, view, and extract JAR files. But, even more usefully, you'll also find a whole package containing classes to allow you to add ZIP and GZIP compression and decompression to your own applications.
Through the java.util.zip package, Sun provides you with the following functionality:
Compression, Decompression, and Viewing of ZIP and GZIP files
Compression and Decompression using the DEFLATE compression algorithm (used by ZIP and GZIP)
Utility classes for computing CRC-32 and Adler-32 Checksums
In this article, I'll focus on ZIP compression, decompression, and viewing.
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