Pune Java Puzzles

Hello Everyone, Please Visit http://pune-java-puzzles.blogspot.com for interesting articles. Many of

Here is a subjective question on Java Why is Object the base class of all classes in Java? Why wait,

Nice questions :) On Jun 17, 1:47 pm, kalpana kalpana <kalpana9...@gmail.com> wrote: > What

Simple Question - Why does Object have notify(), wait() and notifyall() methods?

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So , java compiler report error for that, its unreachable code. On Feb 1, 2008 4:43 PM, Pratham <

The Program is not going to compile

As far as MVC2 is concerned The request first goes to the main controller (Normally a Servlet but can

Abstract factory allows the implementing class to create the objects... whereas Factory method

Hi, Initialization of the servlet is the one time process. I think if the Initialization fails for

Let me correct a simple typo error first then you all can start on this problem public class Logger{

The actual answer is 5. Now the question remains WHY? Could someone try to explain? On Dec 11, 2007 6

As usual I won't give the answer right away. Its good to see people try, I will give hints See

This is a good example. To phrase it as a puzzle i would say Give different Implementations of swap

public class Singleton{ /** * Private constructor */ private Singleton(){ } /** * private static

What is the use of equals and hashCode method? When do we need to overwrite them? Give examples and

Implement a class say MyArrayList. This class implements the java.util.List Interface. You need to