Can anybody post me simple programme of finalize() method ?

Question

i have read as theoretically what is garbage collection and using finalize() method one can achieve but as a student i want to know simple program like we had destructor in c++
thank you

Answer 1

The finalize() method is described in the Object's API documentation.
http://java.sun.com/javase/6/docs/api/java/lang/Object.html
What is noticable from that description is how few guarantees the method makes. My advice would be don't use it.
In particular if you try and use finalize() to clean up resources you will face a couple of problems:
(1) Garbage collection might not ever run.
(2) Across multiple objects, finalize order is not predictable.
A better technique for dealing with the "resources" problem - using the finally keyword and an explicit close() method is described here:
http://java.sun.com/developer/TechTips/2000/tt0124.html