The java.util.zip package, shown in Figure 10-1, contains six stream classes and another half dozen assorted classes that read and write data in zip, gzip, and inflate/deflate formats. Java uses these classes to read and write JAR archives and to display PNG images. The java.util.zip classes are well-suited for general-purpose compression and decompression.
Figure 10-1. The java.util.zip package hierarchy
Basic I/O
Introducing I/O
Output Streams
Input Streams
Data Sources
File Streams
Network Streams
Filter Streams
Filter Streams
Print Streams
Data Streams
Streams in Memory
Compressing Streams
JAR Archives
Cryptographic Streams
Object Serialization
New I/O
Buffers
Channels
Nonblocking I/O
The File System
Working with Files
File Dialogs and Choosers
Text
Character Sets and Unicode
Readers and Writers
Formatted I/O with java.text
Devices
The Java Communications API
USB
The J2ME Generic Connection Framework
Bluetooth
Character Sets