What are the environment variables called in Java? How is one read?

I've looked everyone online and I can't find a straight answer. Can someone help me out?

You mean the system properties?
Here's an example:System.out.println(System.getProperty("java.version"));All of the can be found here:
http://java.sun.com/docs/books/tutorial/essential/system/properties.html

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What are the parameters in Call transaction method?

Hi ABAPER'S,
Please give me what are the parameters in call transaction method?
Thanks,
Prakash

Processing batch input data with CALL TRANSACTION USING is the faster of the two recommended data transfer methods. In this method, legacy data is processed inline in your data transfer program.
Syntax:
CALL TRANSACTION <tcode>
USING <bdc_tab>
MODE <mode>
UPDATE <update>
<tcode> : Transaction code
<bdc_tab> : Internal table of structure BDCDATA.
<mode> : Display mode:
A
Display all
E
Display errors only
N
No display
<update> : Update mode:
S
Synchronous
A
Asynchronous
L
Local update
A program that uses CALL TRANSACTION USING to process legacy data should execute the following steps:
Prepare a BDCDATA structure for the transaction that you wish to run.
With a CALL TRANSACTION USING statement, call the transaction and prepare the BDCDATA structure. For example:
CALL TRANSACTION 'TFCA' USING BDCDATA
MODE 'A'
UPDATE 'S'.
MESSAGES INTO MESSTAB.
IF SY-SUBRC <> 0.
<Error_handling>.
ENDIF.
The MODE Parameter
You can use the MODE parameter to specify whether data transfer processing should be displayed as it happens. You can choose between three modes:
A Display all. All screens and the data that goes in them appear when you run your program.
N No display. All screens are processed invisibly, regardless of whether there are errors or not. Control returns to your program as soon as transaction processing is finished.
E Display errors only. The transaction goes into display mode as soon as an error in one of the screens is detected. You can then correct the error.
The display modes are the same as those that are available for processing batch input sessions.
The UPDATE Parameter
You use the UPDATE parameter to specify how updates produced by a transaction should be processed. You can select between these modes:
A Asynchronous updating. In this mode, the called transaction does not wait for any updates it produces to be completed. It simply passes the updates to the SAP update service. Asynchronous processing therefore usually results in faster execution of your data transfer program.
Asynchronous processing is NOT recommended for processing any larger amount of data. This is because the called transaction receives no completion message from the update module in asynchronous updating. The calling data transfer program, in turn, cannot determine whether a called transaction ended with a successful update of the database or not.
If you use asynchronous updating, then you will need to use the update management facility (Transaction SM12) to check whether updates have been terminated abnormally during session processing. Error analysis and recovery is less convenient than with synchronous updating.
S Synchronous updating. In this mode, the called transaction waits for any updates that it produces to be completed. Execution is slower than with asynchronous updating because called transactions wait for updating to be completed. However, the called transaction is able to return any update error message that occurs to your program. It is much easier for you to analyze and recover from errors.
L Local updating. If you update data locally, the update of the database will not be processed in a separate process, but in the process of the calling program. (See the ABAP keyword documentation on SET UPDATE TASK LOCAL for more information.)
The MESSAGES Parameter
The MESSAGES specification indicates that all system messages issued during a CALL TRANSACTION USING are written into the internal table <MESSTAB> . The internal table must have the structure BDCMSGCOLL .
You can record the messages issued by Transaction TFCA in table MESSTAB with the following coding:
(This example uses a flight connection that does not exist to trigger an error in the transaction.)
DATA: BEGIN OF BDCDATA OCCURS 100.
INCLUDE STRUCTURE BDCDATA.
DATA: END OF BDCDATA.
DATA: BEGIN OF MESSTAB OCCURS 10.
INCLUDE STRUCTURE BDCMSGCOLL.
DATA: END OF MESSTAB.
BDCDATA-PROGRAM = 'SAPMTFCA'.
BDCDATA-DYNPRO = '0100'.
BDCDATA-DYNBEGIN = 'X'.
APPEND BDCDATA.
CLEAR BDCDATA.
BDCDATA-FNAM = 'SFLIGHT-CARRID'.
BDCDATA-FVAL = 'XX'.
APPEND BDCDATA.
BDCDATA-FNAM = 'SFLIGHT-CONNID'.
BDCDATA-FVAL = '0400'.
APPEND BDCDATA.
CALL TRANSACTION 'TFCA' USING BDCDATA MODE 'N'
MESSAGES INTO MESSTAB.
LOOP AT MESSTAB.
WRITE: / MESSTAB-TCODE,
MESSTAB-DYNAME,
MESSTAB-DYNUMB,
MESSTAB-MSGTYP,
MESSTAB-MSGSPRA,
MESSTAB-MSGID,
MESSTAB-MSGNR.
ENDLOOP.
The following figures show the return codes from CALL TRANSACTION USING and the system fields that contain message information from the called transaction. As the return code chart shows, return codes above 1000 are reserved for data transfer. If you use the MESSAGES INTO <table> option, then you do not need to query the system fields shown below; their contents are automatically written into the message table. You can loop over the message table to write out any messages that were entered into it.
Return codes:
Value
Explanation
0
Successful
<=1000
Error in dialog program
> 1000
Batch input error
System fields:
Name:
Explanation:
SY-MSGID
Message-ID
SY-MSGTY
Message type (E,I,W,S,A,X)
SY-MSGNO
Message number
SY-MSGV1
Message variable 1
SY-MSGV2
Message variable 2
SY-MSGV3
Message variable 3
SY-MSGV4
Message variable 4
Error Analysis and Restart Capability
Unlike batch input methods using sessions, CALL TRANSACTION USING processing does not provide any special handling for incorrect transactions. There is no restart capability for transactions that contain errors or produce update failures.
You can handle incorrect transactions by using update mode S (synchronous updating) and checking the return code from CALL TRANSACTION USING. If the return code is anything other than 0, then you should do the following:
write out or save the message table
use the BDCDATA table that you generated for the CALL TRANSACTION USING to generate a batch input session for the faulty transaction. You can then analyze the faulty transaction and correct the error using the tools provided in the batch input management facility.

What are the security implications of having JAVA running on my Mac Book Pro?

What are the security implications of having JAVA running on my Mac Book Pro?

Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.
Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it — not JavaScript — in your browsers.
Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a lock icon in the address bar with the abbreviation "https" when visiting a secure site.

What are the uses of MVC, Extension and how to create it for begineers pls

what are the uses of MVC, Extension and how to create it for begineers pls
dont give link for tutorials please explain ,
thank you,
Regards,
Jagrut BahratKumar Shukla

Hi,
Check out this link :
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/0f/ab3a3c9ca75402e10000000a114084/content.htm">http://help.sap.com/saphelp_nw04/helpdata/en/0f/ab3a3c9ca75402e10000000a114084/content.htm</a>
It is the best possible explanation and documentation that you'll get.
Thanks,
Tatvagna.

4.6C to ERP6.0 Upgrade - what are the recommendations for Unicode and Java

Hi All,
Forgive such a basic question.
We are just beginning to look at our ERP6.0 upgrade and am unclear whether we should convert to unicode at the same time, and also what are the uses for the Java stack.
Unicode?
We are a single language Latin-1 site so don't need Unicode. However will it become mandatory eventually? Are we better, if we have the opportunity now, just to convert. Also I believe the Java stack is only Unicode. Does ASCII ABAP and Java Unicode complicate things?
Java?
Will we need it? We are proposing a technical upgrade from our 4.6c Javaless environment. Where does Java come in to play in ERP6.0? Doesn't it increase greatly the iSeries HW requirements? (I'm looking at a 2 way 550 at the moment)
Look forward to hearing your views.
Regards
Steve

Hi Stephen,
at the moment, in a latin-1 environment Unicode is for old customers not a requrirement. This might change in 5-10 years ...
Java: No problem at all with ASCII (in latin-1 environments)
=> there is no need for you, but you could go for it. We did several Unicode conversions already and these Latin-1 conversions are pretty easy and simple especially on iSeries, because of the special InPlace Unicode Conversion.
... but this can be done at any time ...
Regards
Volker Gueldenpfennig, consolut.gmbh
http://www.consolut.de - http://www.4soi.de - http://www.easymarketplace.de

What are the configuration changes required to deploy OEM from one VM host to other?

Hi,
I have oem setup on one host and corresponding database is on another host. Now i want to deploy both EM and database setup on another host, so what are the configuration changes required to run the setup.

Check this link, this may be helpful
http://docs.oracle.com/cd/E25178_01/doc.1111/e24473/ha_outages.htm

What are the systems variables in oracle

Hai All
In oracle what is called system variable and types of system variables
Good answer hepls me
Thanks & Regards
Srikkanth.M

SET System Variable Summary
Source:http://download.oracle.com/docs/cd/B19306_01/server.102/b14357/ch12040.htm
Oracle environment variables
The following environment variables are valid for Oracle::
ORACLE_HOME
ORACLE_BASE (optional)
ORA_NLS (optional)
NLS_LANG (optional)
TNS_ADMIN (optional)
Source:http://publib.boulder.ibm.com/infocenter/db2luw/v9/index.jsp?topic=/com.ibm.websphere.ii.foundation.conn.fw.orc.doc/configuring/iiylsorcenvvars.html
ORACLE_SID is the name of the database instance that you are using.
T2KDEV is set to the type of terminal you are using; sun if you are using openwindows; xsun if you are using X windows.
TERM is set to the type of terminal you are using. Note: If you are using openwindows, you may have to redefine the variable TERM to sun (instead of cmd-sun) and you should execute ORACLE from a shelltool.
TWO_TASK is set to the location where ORACLE server can be found and will normally be the name of the database instance. This variable helps simplify the command line for starting ORACLE tools.
Source:http://ugweb.cs.ualberta.ca/~c391/manual/chapt3.html
HTH
Girish Sharma
Edited by: Girish Sharma on Mar 3, 2010 9:16 AM
Link and Text added.

What are the runtime advantages of using Java generics?

I have downloaded Build 31 (courtesy of JavaLobby) and compiled the following program.
Both methods (main and main2) are compiled to the exact same bytecodes (use javap -c to dump the bytecodes). I believe that the generics version (main) is clearer and cleaner (I regularly use templates in my C++ programs), but for the JVM they are exactly the same thing.
Why did not the JVM was slightly modified to support without using erasure (the checkcast opcode that is used in compiling (String) it.next() could be eliminated in for (String v : s) )?
// Compile with: javac -source 1.5 Test15.java
import java.util.*;
public class Test15 {
     public static void main2(String[] args) {
          Set s = new TreeSet();
          s.add("one");
          s.add("two");
          s.add("three");
          for (Iterator it = s.iterator(); it.hasNext(); ) {
               String v = (String)it.next();
               System.out.println (v);
     public static void main(String[] args) {
          Set<String> s = new TreeSet<String>();
          s.add("one");
          s.add("two");
          s.add("three");
          for (String v : s) {
               System.out.println (v);

It is not meant to be faster than the normal approach, it is meant to be easier to implement and more secure.
Why did not the JVM was slightly modified to support without using erasure
(the checkcast opcode that is used in compiling (String) it.next() could be
eliminated in for (String v : s) )?I agree, and more do, that the erasure is somewhat the wrong approach, however, the JSR proposal wants it that way.

What are the SAP api calls...

Hi, I have a question about the SAP Portal framework. For example, if I created an edit page for editing portlets, is there an api call that I make to tell SAP portal that I am on edit mode so that portal will subsequently save the changes to perhaps an xml file? Maybe there is a edit_mode variable ?
Any suggestions or sample code is greatly appreciated!
Thanks so much!
Baggett.

Hi Detlev, if you have some time, if possible, can you take a look at EP Content Development question: <b>"Where is admin config page ? ..."</b> Any help is very appreciated!
Thanks so much!
Baggett

What are the reporting tools available for Java applications??

hi..
please tell me some reporting tools available for java applications.... if there are some, please mention how to find their documentation????

http://jasperreports.sourceforge.net is a nice one, there is also a link to a graphical design tool.

What are the printing api available in java

I am very new to java..
I want to print a file from my java program .. how to do it..
please help.

http://onesearch.sun.com/search/developers/index.jsp?col=devforums&qp_name=New+To+Java+Technology&qp=forum%3A54&qt=printing+api
Mike

HT201342 what are the 2 slots called thunderbolt--are they the same as usb slots----new iMac owner

finally gave up on microsoft

No. ThunderBolt is not the same as USB.
I have asked the Hosts to move your thread to correct forum.
Read http://www.apple.com/thunderbolt/ to lean more about ThunderBolt.
Allan

What are the right DNS records to host more than one site on OSX Server (ML). My conf in Server.app looks right but one of my sites lands on the default server. Any suggestion?

I started using OSX Server on Mountain Lion a few days ago and it looks promising.
I do however measure my ignorance in DNS matters...
I defined two websites in addition to the the Default Server, so I have three names to deal with.
For argument's sake
- www.main.com is the default site
- www.sitea.com is the first site
- www.siteb.com is the second site
I define a virtual host for www.sitea.com and another for www.siteb.com
The resulting apache conf is what I would expect, I am pretty sure it is correct.
So I modified my DNS entries (they were A records) to point to my new OSX Server.
My result is:
- www.main.com shows the default site
- www.sitea.com shows the first site
- www.siteb.com shows...the default site
Any ideas?
Cheers

Thanks MrHoffman!
My problem ended up being a name but not in the DNS!...In Apache.
Your information allowed me to rule out possibilities and zoom in to the culprit faster.
I just report here the conclusion hoping it can help someone else.
When I installed OSX Server last week, I had in mind to principally run siteb.
During the initial install, this is what I must have entered and then forgot about it.
Then I defined my virtual hosts sitea and siteb and realised my machine was called siteb and changed its name to main to avaid a name collision. At which time I remember OSX Server telling me that changing the name could have consequences...But it apparently went ok, and it did except for one little thing.
The consequence was this:
in the main configuration file /Library/Server/Web/Config/apache2/http_server_app.conf the ServerName directive had remained siteb (instead of main). I manually updated it with TextEdit (could do vi from bash, its the same) and replaced siteb with main.
There is a way to detect it.
In Server.app, there is a "logs" panel, which displays all sorts of logs for everything including the websites.
Each website's logs are presented as "access" and "error" logs. The information was there, but I could not see it because the viewing window in remarkably small for so much information in raw text...
web logs are actually written to only two files in /var/log/apache2 (error.log and access.log)
I openned two bash windows and run tail -f on error.log in one and tail -f access.log in the other.
When I started the web service, apache threw a warning stating from mod_ssl saying that the certificate did not match the serve name...I the certificate was what I expected, I checked http_server_app.conf and found the ServerName directive that was not changed when I renamed my server...
Easily fixed when its found, but it can take a while to find.
BTW, I was using A DNS records for and it works, but I find your method of using CNAME records documents the administrator's intent better than with A records; I started to do the same. (A records a useful though, they can run a domain across multiple machines)
Cheers mate!

What are the ways to Copy Firm Planned Order from one ASCP Plan to another?

We run two EDD Plans with very similar options, but with different plan horizons.
To have the suggestions synchronized, we need to copy the "Firm Planned Orders" from one plan to another.
We tried inserting the records in MSC_ST_SUPPLIES with Order type 5 and firm planned type 1 with appropriate plan id, but Planning ODS Load is not considering those inserted records.
We don't want to insert directly into MSC_SUPPLIES.
Any inputs is appreciated.
Thanks
Sundar

You can also call a custom DTSX package in SSIS via the datamanager.
there are at least 5 ways of transfering data in BPC between apps.
1. Through the front end (excel etc) via evdre/evsnds
2. Through Script logic using *Dest App
3. Using BPC's standard export dtsx package via DM
4. Using SSIS using BPC's custom SSIS tasks
5. Through Script logic using stored procs.
i am sure people will come up with more.
remember if you use ssis and move data into any table but the wb, you need to process the cube afterwards.

What are the possible reasons for bill simulation fail on one day or

one period? Thanks.
ie:
Bill sim process flag is X in table ZET_SM_BIL_DAILY on a particular day or a particular short period.
Edited by: dan421 on Oct 24, 2011 11:23 PM

Hi,
There are many reason for faliur of bill simulation, can you please eloborate what error message you are getting.
Ritesh

What are the environment variables called in Java? How is one read?

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