Appendices

These appendices provide information about garbage collection and the HotSpot virtual machine and how they can impact the performance of your Java programs.

Appendix A, The Truth About Garbage Collection (page 193)

To make intelligent choices about memory management issues, you need to have a basic understanding of how garbage collection works. This appendix provides an overview of the garbage collection mechanism and provides tips for handling memory in your Java programs.

Appendix B, The Java HotSpot Virtual Machine (page 205)

The Java HotSpot virtual machine uses cutting-edge techniques for memory management, thread synchronization, and dynamic compilation that can dramatically improve the performance of Java programs. This appendix provides an overview of the Hotspot VM and describes option settings that you can use to control the behavior of the Hotspot VM at runtime.

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