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Doubts in Java

omkar patkar
Ranch Hand

Joined: Aug 25, 2005
Posts: 231
why applet does not have a main() method ?

why applets are treated as different category of progrms ?

how is a high level of security achieved using applets ?

when an applet runs it can be saved with ".ser" .....what is that ?

how does execution of applet differ from excution of normal program ?

how does a browser with suitable plugin provide the functionality of "appletviewer.exe" ?....whats that plugin ?

are IOException never possible in Java ?

what is the significance of "volatile" modifier ?

What is the excat relation between "char", "int", and "byte" ? how can we relate these three datatypes and UNICODE as well as ASCII ?

is it true that different environments use diffrent character sets? Why ?......whats the character set used by Windows (XP/98/95/NT) ?

Can Sleep() method Or keywords like Synchronised be used in a class without implementing Runnable or extending Thread? Why ?

How does join() work in threads? can u Please explain their working theortically? How is it different from isAlive() ?

How can we implement various "states" of threads in our prg ? which built-in functions or methods represent these states ?

what is a daemon thread ?

why main must be the last thread to finish executing ? what to do when a java class does not contain main ?

how does presence of other threads in my PC affect my multithreaded java prg.....which is executed in differnet Java runtime Environment?

how do diff Platforms ( Windows, Mac, Linuxetc.,) schedule threads ?

What is a "stream" ?

What is a console?...e.g ???

what does buffer or anything related to buffer mean in IO of Java?

Are streams Objects ?

Thanks and Regards
Omkar Patkar (SCJP 1.4)[url][/url] | [url][/url]
Norm Radder
Ranch Hand

Joined: Aug 10, 2005
Posts: 692
You should read your text book before trying to take the exams.
Ilja Preuss

Joined: Jul 11, 2001
Posts: 14112
Too many questions for one thread, especially since you should provide much more context for each question for us to be able to answer them effectively.

The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus
I agree. Here's the link:
subject: Doubts in Java
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