CHAPTER 11

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Garbage Collection

In this chapter, you will learn

  • What garbage collection is
  • How garbage collection is implemented in Java
  • How to pass a hint to the JVM to run the garbage collector
  • How to implement the finalizers
  • Different states of an object based on its reachability and finalization status
  • The difference between strong and weak references
  • How to use weak references to implement memory-sensitive cache

What Is Garbage Collection?

In a programming language, memory management is central to the development of a fast, efficient, and bug-free application. Memory management involves two activities:

  • Memory allocation
  • Memory reclamation ...

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