Final : final keyword can be used for class, method and variables. A final class cannot be subclassed and it prevents other programmers from subclassing a secure class to invoke insecure methods. A final method can’t be overridden. A final variable can’t change from its initialized value.

Finalize() : finalize() method is used just before an object is destroyed and can be called just prior to garbage collection.

Finally : finally, a key word used in exception handling, creates a block of code that will be executed after a try/catch block has completed and before the code following the try/catch block. The finally block will execute whether or not an exception is thrown. For example, if a method opens a file upon exit, then you will not want the code that closes the file to be bypassed by the exception-handling mechanism. This finally keyword is designed to address this contingency.

You can see the full list of Java Interview Questions Here

If you have any questions or comments please email me at john@johnathanmarksmith.com



Published

21 May 2013

Tags