Java Tutorials - Herong's Tutorial Notes

∟Managing Bit Strings in Byte Arrays

This chapter provides tutorial notes and tutorial examples on managing bit strings in byte arrays. Topics include setting a bit value into a byte array; getting a bit value back from a byte array; rotating all bits in a byte array.

setBit() - Storing a Bit into a Byte Array

getBit() - Retrieving a Bit from a Byte Array

rotateLeft() - Left Rotating All Bits in a Byte Array

bitStringTest.java - Testing Program

Conclusion:

• Java has no built-in support for bit strings.
• Bit strings can be stored in byte arrays.
• getBit() and setBit() are easy to implement on byte arrays.
• rotateLeft() is easy to apply on byte arrays also.

Table of Contents

 About This Book

 Installing JDK 1.4 on Windows 2000

 Installing JDK 1.5 on Windows XP

 Installing JDK 1.6 on Windows XP

 Execution Process, Entry Point, Input and Output

 Bits, Bytes, Bitwise and Shift Operations

►Managing Bit Strings in Byte Arrays

 StringBuffer - The String Buffer Class

 System Properties and Runtime Object Methods

 Execution Threads and Multi-Threading Java Programs

 ThreadGroup Class and "system" ThreadGroup Tree

 Synchronization Technique and Synchronized Code Blocks

 Deadlock Condition Example Programs

 Garbage Collection and the gc() Method

 References

 PDF Printing Version