ZIP Data Compression with Java

Introduction

Do you need the ability to add data compression to your enterprise application?  Well, look no further because Java 1.1 provides a package for zip-compatible data compression.  The new package, java.util.zip, allows software developers to read, create, modify and write PKZIP and GZIP compatible files.

This article will provide step-by-step examples for reading data from a ZIP file and writing data to a ZIP file.  Also, the article will discuss the methods available for accessing property information for the compressed entries in a ZIP file.

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Source Code

• Listing 1
  • jkunzip.java
• Listing 2
  • jkzip.java

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