请问怎么在java中实现 类似于 c++中 destructor 函数的功能。

[eagle19790214]

：），谢谢

[jiganghao]

java.lang.Object has a finalize() method. It is similar to desctrutor in C++, but there are important differences.

finalize() is basically for release non-memory resources that the object holds reference to, like database connection, file handle, etc. In java, memory allocation/release is not an issue.

But there is no deterministic time when finalize() is called. It depends on garbage collector behavior. So you'd better don't use it.

refer the book 'effective java', itme 6 'avoid finalizers'. Hope there is a chinese version available.

[ppgoodboy]

通常情况下，不用finalize()方法，java有自带的垃圾回收机制garbage collector,也就是gc().
有空的时候可以看看http://java.sun.com/docs/books/tutorial/对学习java很有帮助。