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Whats JVM?

charles chukwu
Greenhorn

Joined: Jul 17, 2008
Posts: 4
hI I just joined the JavaVM forum after joining this very respected Javaranch community...I want to know what JVM means... what it does and why its necessary.You might say i am a real green horn and you wont be wrong.
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 38486
    
  23
Java Virtual Machine.

And welcome to JavaRanch

I Googled hoping to find something more informative and found this. Hope it's useful.
Gulsum Ramazanoglu
Ranch Hand

Joined: Jun 27, 2008
Posts: 51
Its the base that your compiled Java programs are running on... To be able to run your Java code on any platform, first you need Java Virtual Machine installed on that platform.. By THIS way, the technology behind JVM (or under JVM) becomes indifferent for your compiled Java programs.. On Unix, Windows.. whatever platform you have, if you have JVM on that platform, then you can run your compiled Java codes.
Sachin Adat
Ranch Hand

Joined: Sep 03, 2007
Posts: 213
Nice link Campbell...........


SCJP 6
How To Ask Questions On Java Ranch - How To Answer Questions On Java Ranch
Mandar Khire
Ranch Hand

Joined: Sep 11, 2007
Posts: 492

This is for charles chukwu & all GreenHorns including me.
First read all questions (already)asked by other greenhorn & then ask question. I am not big man to tell this but as good student follows some own rules.
Rule 1. Try to find Answer in books available at you.
Rule 2. Try to search on Internet.
Rule 3. Ask teacher or friend.
Then also you don't get answer then ask here.
Because here every ranch hand, Bartender & authors are very intelligent by asking some foolish question we as student give disrespecting there knowledge.
Try this link.
JVM
Try to ask some hard questions so we get food for Brain.


Millions saw the apple fall, but Newton asked why.
Gulsum Ramazanoglu
Ranch Hand

Joined: Jun 27, 2008
Posts: 51
Mandar, while I have a similar mentality with you, how can we describe questions as hard or easy? Its relative and here is for beginners..I have asked many questions here that were hard for me.. and easy, even silly for those qualified guys..
But of course its better to check around and value others time.
By the way, I couldnt see a search box or something around to search relevant questions and answers.. if there is please let me know too.. thanks
Gulsum Ramazanoglu
Ranch Hand

Joined: Jun 27, 2008
Posts: 51
lol@myself!
I found Search..
sorry for this silly q..
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 38486
    
  23
I agree with Gulsum Ramazanoglu; this forum is advertised as "no question too simple or small."
Paul Clapham
Bartender

Joined: Oct 14, 2005
Posts: 18541
    
    8

Yes... however, Gulsum, if you do want to search then at the top of most of the pages here there is a "Search" link. It's in a cluster of links such as "FAQ" (also worth looking at) and "My Profile" and so on. That searches JavaRanch.

And most people use Google to search for terms like "JVM" if they suspect they might be commonly used. If you key "JVM" into Google then it returns a whole lot of relevant links, as it happens. If you see a Wikipedia link in the list then it's usually a good idea to read that one first.

As Campbell says, it isn't wrong to ask without searching. It's just that if you search, you often get a better answer faster. But I understand that if your native language is not English then it is hard to look at a big list of links and decide right away whether they are useful or whether they are garbage.
Gulsum Ramazanoglu
Ranch Hand

Joined: Jun 27, 2008
Posts: 51
Paul, actually my approach is so that; I first try to learn a point theoretically, google around, later look for an answer here.. and mostly its about a specific point that I couldnt find an answer or confused..

By the way, I didnt have any idea about Wikipedia until you suggest... Thank you especially for this...

And sorry again for taking your time for the Search thing... I saw a little late..
Have a nice night (here its night... if not there, so wait a little!
Anirudh Vyas
Ranch Hand

Joined: Oct 23, 2006
Posts: 93
Just as a reference, You guys might be interested in reading the actual JVM Spec.

http://java.sun.com/docs/books/jvms/second_edition/html/VMSpecTOC.doc.html

Regards
Vyas, Anirudh


Vyas, Anirudh
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Whats JVM?