What is the difference between jdk,jre,jvm?

hai friends
i am new to java,
can any body send the answer to this question
what is the difference between jdk, jre, jvm?

You know, you can search the Internet using google:
http://www.google.com
Type in What is the JVM? You'll be amazed at the results!!

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What is the difference between JDK / JRE?

Hi All,
What is the difference between JDK / JRE. ?
Is it enough if I installed JDK 5.0 Update 16 Only or Java Runtime Environment (JRE) 5.0 Update 16 is also needed.
I as in the assumption that JDK 5.0 Update 16 contains the Java Runtime Environment (JRE) 5.0 Update 16.
Let me know the jdk which comes along with it jre.
Thanks
Sree
Edited by: psreekant10 on Oct 28, 2008 4:50 AM

psreekant10 wrote:
Hi All,
What is the difference between JDK / JRE. ?JDK = Java Development Kit = Stuff used to write Java programms.
JRE = Java Runtime Environment = Stuff used to execute/run Java programs.
Is it enough if I installed JDK 5.0 Update 16 Only or Java Runtime Environment (JRE) 5.0 Update 16 is also needed.Yes, it's enough.
I as in the assumption that JDK 5.0 Update 16 contains the Java Runtime Environment (JRE) 5.0 Update 16.Yes, the JDK contains a JRE.
Let me know the jdk which comes along with it jre.<sarcasm>JDK 5.0 Update 16 contains JRE 1.4.2 Update 3, obviously!</sarcasm>
No, seriously: Of course JDK 5.0 Update 16 contains the JRE 5.0 Update 16.

What is the difference between jdk and jre

what is the difference between jdk and jre
plzz tell me in detail

It's an extremely important skill to learn how to search the web. Not only will it increase your research and development talents, it will also save you from asking questions that have already been answered numerous times before. By doing a little research before you ask a question, you'll show that you're willing to work and learn without needing to have your hand held the entire time; a quality that is seemingly rare but much appreciated by the volunteers who are willing to help you.
If you've done the research, found nothing useful, and decide to post your question, it's a great idea to tell us that you've already searched (and what methodologies you used to do your research). That way, we don't refer you back to something you've already seen.
To get you started, here is an excellent resource: The Java� Glossary

What are the differences between jdk and sdk

what are the differences between jdk and sdk?? thanks

Just marketing whims.
SDK = software development kit
JDK = Java development kti
Sun has use both names to refer to its SDK for Java. I forget which one they're using now, but they've switched a couple of times.

What is the difference between JDK and J2ee

Could someone explain, in simple terms, what is the difference between JDK and J2ee. I am trying to understand the difference.
THanks

Could someone explain, in simple terms, what is the
difference between JDK and J2ee. I am trying to
understand the difference.You can practice on this one first. What's the difference between chalk and cheese? No just kidding.
A JDK is a set of tools for Java development including compiler, runtime system and standard libraries. J2EE is the enterprise version of the Java technology platform (it's one of three). To use it you download the proper JDK's.

What is the difference between JDK & SDK?

What is the difference between JDK & SDK?
its urgent.
thanks

The first letter. That's it.
The J stands for Java, the S stands for Software.
JDK is the old name for the SDK.

What is the difference between jdk and jsdk

I don't know the difference between jdk and jsdk,if i had set up the jdk,could i develope the servlet.

For servlets you need J2EE classes, which are in what is usually called JSDK (Java Server Development Kit). So, you cannot compile servlets with just the JDK installed, you need to download the J2EE SDK.

What is the difference between jdk version 1.3.1-b24 and 1.3.1_02-b02?

Hi,
This is a weird question. But I really need to know the difference between jdk vesion 1.3.1-b24 and 1.3.1_02-b02.
Anyone has a clue?
Thanks
Wayne

This is a weird question. But I really need to know
the difference between jdk vesion 1.3.1-b24 and
1.3.1_02-b02.Bug fixes only.
When reading the strings above, ignore the part saying "-b##" (that's the build number). So you're looking at 1.3.1 (the base release), and 1.3.1_02 (patch 02 on 1.3.1).

What's the difference between JIT and JVM?

Don't laugh at me for asking this!I really want to know it!Thanks!

JVM stands for Java Virtual Machine - means software to run Java bytecode.
JIT - stands for Just In Time, and it is a feature of JVM that comiles parts of Java byte code to platform specific binary format on program runtime.
HotSpot - is little bit similar to JIT: in first execution of program loop JVM looks for some "hot spots" - most expensive program parts abd then compiles it to native code.
It is not shame to ask any question. But sometimes they may not be answered :))
best regards

Difference between JDK , JRE J2EE

Hi
Would anybody just show the difference between JDK , JRE , J2EE , and J2RE
Thanks alot

JDK - Java SDK from Sun
JRE - Java Runtime Environment
J2EE - Java 2 Enterprise Edition
Basically, JDK is J2SE, Java Standard Edition. You need this to develop and to compile standard Java software. JRE allows only execution without any special components. J2EE is extension to J2SE. It contains Business or Enterprise components like Java Beans.

What is the difference between j2sdk1.4.1_03/jre and j2re1.4.1_03?

Hi,all!
What is the difference between j2sdk1.4.1_03/jre and j2re1.4.1_03?
Why there have two JRE? Which one we should use?

JRE - Java Runtime Enviroment, what you stick on the end-user computers - http://www.java.com
SDK - Software Development Kit (aka JDK - Java Developer Kit) - http://java.sun.com

Whatz the difference between jdk and jre

i would like to know the difference between jdk and jre.

Yes JRE is Java Run Time Environment. The java programming language adds the portability by converting the source code to byte code version which can be interpreted by the JRE and gets converted to the platform specific executable ones. Thus for different platforms one has corresponding implementation of JRE. But JRE has to meet the specification JVM (Java Virtual Machine) Concept that serves as a link between the Java libraries and the platform specific implementation of JRE. Thus JVM helps in the abstraction of inner implementation from the programmers who make use of libraries for their programmes.
The JDK(Java Developmental Tool kit) comes along with java libraries and JVM embedded in it. Apart from these it comes along with the utility tools for byte code compilation "javac", Executing the byte codes through java programmes through "java" and many more utilities found in the binary directory of java. Speaking practically JDK is essential for developers, which comes along with library packages to develop Software programmes. While JRE is minimal set of programmes which executes the java class files developed by the software developers.

What's the difference between JRE and HotSpot

What's the difference between JRE and HotSpot?
Where can i find HotSpot for Solaris?
tks!

The difference between the two is explained at:
http://www.sun.ca/software/communitysource/hotspot/
and
http://www.sun.ca/software/communitysource/hotspot/faq.html
It's included in the J2SE v1.3.1 release.

What's the difference between sdk & jdk?

What's the difference between sdk & jdk?Can an sdk compile any java file?

Oh OK.Are the setup procedures the same as in jdk?How do you use it with your java editor,once installed??Thanx again!
Aesh83

What is the difference between netbeans and JDK ?

What is the difference between netbeans and JDK ?
This is because i got netbeans 5.5 ide and nothing else and still i ran some hello world programs successfully. . ..
i am confused - - does jdk come combined with netbeans ?

What is the difference between netbeans and JDK ?
This is because i got netbeans 5.5 ide and nothing
else and still i ran some hello world programs
successfully. . ..
i am confused - - does jdk come combined with
netbeans ?JDK is Java Development Kit. It includes all the Java APIs and Java tools like compiler etc so that you can develop code in Java language.
NetBeans is an IDE (Integrated Development Environment). It provides you tools for helping you write Java code, like it provides you a text editor where you can type your java code etc. You can use any other IDE like Eclipse JCreator etc for writing java code.
NetBeans should come packaged with a JDK. NetBeans requires JDK to function but JDK does not require NetBeans to function.
Personally, if you are so new to the language then I would recommend that you stay away from NetBeans or any other other heavy IDE for a while and code in something like WordPad or some of the other editors recommended in this thread. This will help you learn the language better. You can latter decide on an IDE when you are comfortable with the language.

What is the difference between jdk,jre,jvm?

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