What's the difference btw JDK and SDK?

I went to the download page,some of the download are for J2SE Development Kit (JDK) ,some others are J2SE Software Development
Kit (SDK)?Are there any difference btw them?

Sun changed the label from SDK to JDK when Java 5 was
released.There was at least one earlier change, I believe, so it seems it was JDK, then became SDK (or J2SDK) and now back to JDK.
In the context of Java, if you're not a purist about matching a particular acronym with a particular version, then the two are interchangeable.

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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 are the differences between api and sdk

Hi,
Could anybody clarify for me what are the difference between API and SDK? I googled for the answer, and couldn't find any thing on this topic.
Many thanks in advance.
javasfan

Is it correct to say that "a SDK includes all the
APIs"? or "API sits on top of the SDK"?It's a bit weird to say either. First, the JDK doesn't include all APIs. Just the J2SE core API. Others, like 3rd party libraries or J2EE are not included. Second, if you mean the API docs, they're also not included IIRC.
It'd technically only be correct to say "the SDK provides an API", I guess. The example is very lame, but: if the SDK is a machine, the API is the sum of its buttons and levers and gauges and intakes and outlets and exhausts. The API docs are the manual.

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 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 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 btw EXPINV and INVOIC

INVOIC :Invoice / Billing document
EXPINV : Export invoice
What is the fifference between these two message types.
I need to trigger Idoc once the INvoice verification is done using MIRO t-code. I mean I need to send Actual cost of the material to 3rd party application using XI after Invoice is verified. Iam just wondering which Idoc I need to trigger? Please help..
Message was edited by: Ram Krish

Hi Ram,
Message type <b>INVOIC</b> is used to transmit the invoice to the customer for the shipped goods.
Message type <b>EXPINV</b> is used to transfer foreign trade information from R/3 to an external system.
For more information, please check this link.
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/SDFTCOM/SDFTCOM.pdf
For your case, you can use message type INVOIC to send actual cost of the material to 3rd party system.
Hope this will help.
Regards,
Ferry Lianto
Please reward points if helpful.

Hi, would anyone tell me what is the difference between JRE and SDK?

So which one I should download and install on my computer so that I can do some programming?
Thanks for help

JRE is used to run the programs, SDK is the SofwareDevelopmentKit or something like that. So for programming you need the SDK (contains the JRE too). For running the programs you need the JRE.

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 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's the difference between setFollowRedirect() and setinstanceFollowRedi

What's the difference between setFollowRedirect() and setInstanceFollowRedirect() ?????

Hi there,
setFollowRedirects and setInstanceFollowRedirects both set flags that indicate whether or not the HtppURLConnection should follow a redirect if it receives one from the server that it is connecting to. The difference is that setFollowRedirects() is a static method that changes the behaviour for all instances of the HttpURLConnection class (or more likely the implementation class, HttpURLConnection is abstract) and setInstanceFollowRedirects() just changes it for the instance on which you call it.
BTW: The field set by setFollowRedirects is private (followRedirects) while the flag set by setInstanceFollowDirects is protected and is listed in the API docs (instanceFollowRedirects)
Hope this helps
Amanda

What is the difference btw Oracle bpm 10gr3 vs albpm 6.0.5 version

What is the difference btw Oracle bpm 10gr3 vs albpm 6.0.5 version
Are the build number common to them?

Projects built in ALBPM 6.0 can be used directly in Oracle BPM 10g, but the reverse is not true.
It's sometimes thought that Oracle BPM 10g was just a relabeling of the predecessor BEA product ALBPM. This is not the case.
In Studio, standards are better supported:
<li> By default, new processes now use horizontal swim-lanes. You can change the swim-lanes orientation individually for each process. You can define the default orientation for each project and for your Studio installation.
<li> It uses more sophisticated BPMN icons. BPMN is the new default process diagram theme. BPMN constructs now include Gateways (AND, OR (new in 10g), XOR, Multiple Instance (previously Split-N)). A new Timer event was added. Loop conditions for automatic activities and groups were added.
<li> Studio now supports Mac/OS 10.4 Tiger and Mac/OS 10.5 Leopard.
<li> Studio now supports Windows Vista.
<li> Studio now supports CVS and Subversion version control systems.
<li> The Studio UI incorporates Eclipse 3.3 improvements such as the following:
<li> New Minimize/Maximize behavior: When minizing view stacks in Studio, the view icons are placed on the nearest trim area. If a view is maximized, all other views are minimized, rather than hidden.
<li> Interactive tasks provide a new "previewable" property. The new Application Display Panel and Task Execution Panel of WorkSpace automatically start the execution of previewable tasks without locking the process instance. Enabled by default for Dashboards.
<li> New type of Activity: Time Activity. A process instance that arrives to this activity just sits idle until a timed event occurs.
<li> Option Process Notification Immediately on Termination Wait activities has been deprecated. Now both the Wait activity and the first activity in the interruption flow always execute in the same transaction.
<li> Although I'm not wild about it, there is an auto-layout feature re-arranges all visual elements of a process diagram automatically, minimizing superpositions and aligning the flow as much as possible. Only available for processes with horizontal lane orientation.
<li> New process property (Greedy Execution Mode) indicates the Process Execution Engine to collapse contiguous automatic tasks in a single transaction. This mode of execution provides better performance for some processes. Disabled by default.
<li> A new Process-Level debugger allows developers to introduce breakpoints and debug complete processes running in Studio. When the execution reaches a breakpoint, the Engine pauses and Studio's debugging view appears. You can inspect variables, add new breakpoints, resume and continue execution.
User Interface
<li> The Business Analyst and Business Architect profiles provide a simpler set of menu options and toolbars.
<li> New editor for BPM Object Presentations. It's easier to use, provides a WYSIWYG drag and drop interface, improved CSS support and a new Drag & Drop toolbar.
<li> You can now interrupt a running Simulation started with the Run to the End button.
<li> New BETWEEN operator added to Business Rules editor (on both Studio and WorkSpace). This operator works with Time and numeric types.
<li> The Documentation View now displays read-only documentation for the standard Fuego.* components.
<li> New on-line help book Oracle BPM Components Reference provides reference documentation for the standard Fuego.* components. Only available for the developer profile.
<li> This version introduces Project Dependency, which allows you to re-use components and role definitions from a common base project.
In the WorkSpace:
<li> WorkSpace has an edit mode which allows users to change and save the configuration and layout of panels.
<li> A new tabbed interface allows you to define multiple pages, each with its own set of panels. You can export the layout configuration to an XML file and re-import it on a different environment or as a different user. Administrators can define layouts for all users in a certain Role.
<li> You can export the data in the Worklist panel to a PDF or CSV
<li> You can see an OOTB chart representation of the distribution of items in the Worklist panel.
<li> WorkSpace includes the following new panels: Task Panel: Renders the execution of interactive tasks within the panel, instead of using the default modal dialogs. Dashboard Display Panel: Provides a way to display Dashboards within a Panel. View Chart Panel: Provides predefined graphical reports about process performance, work items distributions and workload. Application Panel: This panel contains an application (the execution of a Global Interactive). Applications can respond to work item selections or run independently.
<li> The user can now do re-assignment operations on multiple instances at once.
<li> The Business Rules editor shows additional auditing information, including who and when a rule was modified.
<li> WorkSpace now (optionally) stores session-specific information as client-side cookies. This allows load-balancing on a cluster environment without affecting the user experience.
Integration:
<li> New timeout property added to external resources of type HTTP Server. Use this setting to control timeouts on web service invocations.
<li> Authentication information added to external resources of type JMS (Java Messaging System)
<li> Processes exposed as Web Services can now provide a runProcess operation, which synchronously executes the complete process (from begin to end). Only meaningful on fully automated processes.
Enterprise:
<li> New Ant tasks to rebuild the Oracle BPM web applications for container-security.
<li> Configuration Wizard adds option Generic JNDI to the list of available LDAP servers. When using this option, you must provide a custom configuration file defining the mapping of object classes, attributes and filters. This new feature is also the new mechanism for integrating with AquaLogic Interaction 6.5, replacing the old Identity Service.
<li> Configuration Wizard can now be run without user interaction ("silent mode"). You specify all configuration values in an XML file.
<li> Oracle BPM client applications (including WorkSpace, PAPI-WS and custom PAPI apps) are now able to connect to multiple environments (BPM Directories) simultaneously.
<li> Added Sybase as a new provider for the Engine database and BPM Directory database.
<li> More information added for auditing of Business Rules, including who and when a rule was modified.
<li> Updated bundled JDBC drivers to their latest version.
<li> The Engine now logs warning messages when it detects rogue threads. A new preference allows the administrator to disable automatic re-starts when the Maximum Number of Rogue Component Executions is reached. In addition, in the case of an automatic re-start the Engine now logs a complete thread dump.
<li> Simplified procedures for deploying BPM WorkSpace on WebLogic Portal. BPM Process Administrator now generates the WorkSpace EAR file as a WLP library module.
<li> Authentication information added to external resources of type JMS (Java Messaging System).
Dan

What is the difference between #variable_name and :variable_name?

Hi!
What is the difference between #variable_name and :variable_name?
I have found that if we use alphanumeric variable then :variable_name return value in quotes but #variable_name without quotes.
Why it does not work in the same way for variable default values when variable is used in filter? (It works in mapping)
I use variable in filter like T.OUT_DATE>convert(datetime,:LAST_UPDATE_DATE,121)
When I use my variable in package and do refresh it works fine. But when I try to execute the same interface with variable default value I get error. Seems that variable name has been not changed to the value. It does not work with default value in quotes neither without quotes.
Any ideas how to solve that?
Thank you in advance!
Edited by: user13278245 on Sep 15, 2010 4:34 AM

Question is how to make it work with default value, when I execute interface standalone, not in package? And why it works in mapping but not in filter?
+ I have found that it works if source is Oracle. It doesn't work only for MS SQL source.
Edited by: user13278245 on Sep 15, 2010 6:43 AM

What is the difference between start() and run()

Hi:
what is the difference between start() and the run()???
in my app, i have
Console.debug( "starting thread to listen for clients" );
_server = new Server( this );
_server.start();
_server extends Thread..
why everytime i use server.start(); my app will terminate on it is own, even though in my servr.run() method, i have a while loop
and if i call _server.run() explicitly in my code, that while loop will be in execution
can someone let me know??
thnx

what is the difference between start() and the
run()???start() is a method on Thread that tells it to start.
run() is a method in the object that the thread executes.
why everytime i use _server.start(); my app will
terminate on it is own, Err.... I'm not convinced this is true. It'll throw an IllegalThreadStateException, if you try to restart an existing thread.
If that's what you're saying.
even though in my _servr.run()
method, i have a while loopI don't see the connection. Are you saying that the while loop never terminates, and you don't see why the thread is terminating?
and if i call _server.run() explicitly in my code,
that while loop will be in executionIf you call server.run() explicitly, then run() will be executed in the same thread that you called it in.

What is the difference between exists and in

hi all
if i have these queries
1- select ename from emp where ename in ( select ename from emp where empno=10)
and
2- select ename from emp where exists ( select ename from emp where empno=10)
what is the difference between exists and in is that only when i use in i have to bring the field name or what.... i mean in a complex SQL queries is it will give the same answer
Thanks

You get two entirely different result sets that may be the same. Haah! What do I mean by that.
SQL> select table_name from user_tables;
TABLE_NAME
BAR
FOO
2 rows selected.
SQL> select table_name from user_tables where table_name in (select table_name from user_tables where table_name = 'FOO');
TABLE_NAME
FOO
1 row selected.
SQL> select table_name from user_tables where exists(select table_name from user_tables where table_name = 'FOO');
TABLE_NAME
BAR
FOO
2 rows selected.So, why is this? the WHERE EXISTS means 'if the next is true', much like where 1=1 being always true and 1=2 being always false. In this case, where exists could be TRUE or FALSE, depending on the subquery.
WHERE EXISTS can be useful for something like testing if we have data, without actually having to return columns.
So, if you want to see if an employee exists you might say
SELECT 1 FROM DUAL WHERE EXISTS( select * from emp where empid = 10);
If there is a row in emp for empid=10, then you get back 1 from dual;
This is what I call an 'optimistic' lookup because the WHERE EXISTS ends as soon as there is a hit. It does not care how many - only that at least one exists. It is optimistic because it will continue processing the table lookup until either it hits or reaches the end of the table - for a non-indexed query.

What's the difference btw JDK and SDK?

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