Re: What does this Snippet Do ? Interview Question!!!!!!!!!

From:
Patricia Shanahan <pats@acm.org>
Newsgroups:
comp.lang.java.programmer
Date:
Sat, 14 Apr 2007 15:59:40 -0700
Message-ID:
<evrmd3$1kka$1@ihnp4.ucsd.edu>
adil.fulara@gmail.com wrote:

Hi,

I got the following question in a interview test that i gave and i was
unable to answer it.

========================================================================
 What does the following program print?

public class Initializer
{
    private static boolean initialized = false;
    static
    {
        Thread t = new Thread( new Runnable()
        {
            public void run()
            {
                initialized = true;
            }
        } );

        t.start();
        try
        {
            t.join();
        }
        catch (InterruptedException e)
        {
            throw new AssertionError(e);
        }
    }

    public static void main(String[] args)
    {
        System.out.println(initialized);
    }
}

(provide the exact output for this question, there are no choices)
=================================================================

At the time of the test, i just couldnt figure if the code would be
executed or not since in Main, there was no instance of the object
created.

Any help on the question ?

Also where could i find such tricky snippets of code so that icould
test myself and in the process improve my java knowledge.

Thank You.


I have not run it, but I would expect it to print "true".

A static initializer is run during class initialization, which has to
complete before the main method can be run.

Patricia

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