This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I have got a question regarding object finalization.
My Question is: - When I set „tf = null“ why doesn’t it call the finalize method and print out ("Hey, I'm in TestFinalize finalize()")? It seems it only calls the finalize() method when I set the reference to null (tf = null) AND excplicitly suggest garbage collection with „System.gc()“. WHY doesn’t it simply call finalize() method when i set the object reference To null. Why do I have to call System.gc() additionally?
When an object is unreachable, it becomes *eligible* for gc'ing - that is, the next time the garbage collector runs, it *may* gc the object. The finalize method is called *immediately* before the object gets gc'ed and there is no guarantee to when or wether this will happen besides that it will happen before an OutOfMemoryError occurs. Even System.gc() does only *suggest* that the gc gets activated. Did that help?
The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus