String program

Hello every body,
i need some help on this program suppose string str="computer"
i want output like
computer
omputerc
mputerco
putercom
utercomp
tercompu
ercomput
rcompute
computer
plz help me
with regards,
Anil.m

public class Test {
     public static void main(String[] args) {
          String c ="computer";
          for(int i=0;i<c.length();i++){
               String s="";
               c=s.concat(c.substring(1,c.length())).concat(c.substring(0,1));
               System.out.println(c);
}-TC
Message was edited by:
DAmm man.. slow connection again

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Need String program

Hi This is Sunil, i'm new to java,
i wanted one string program i.e.
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please do needful,,,

sabre150 wrote:
sunil054 wrote:
I'm not excepting anything sir,
this program asked in one interview, i didt cleared so wanted output of this program.This is the 'New To Java' forum so I find it very hard to believe that such a trivial 'Java test' was part of a job interview; even for a very very very junior programmer. It is just the sort of question posted here by students requiring homework solutions.No students. Lazy highschool kids calling themselves students maybe, but no students.
Students study, that's where the word originates. These kids don't study, they vegetate.

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How i invoke the c program?

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How do I run multiple java apps in one JVM to reduce memory use?

Hi all,
I saw an article either on the web or in a magazine not too long ago about how to "detect" if the app is already running, and if so, it hands off the new instance to the already running JVM, which then creates a thread to run the Java app in. As it turns out, my app will be used in an ASP environment, through Citrix. We may have as many as 50 to 100 users running the same app, each with their own unique user ID, but all using the same one server to run it on. Each instance eats up 25MB of memory right now. So the question is if anybody knows of a URL or an app like this that can handle the process of running the same (or even different Java) apps in one JVM as separate threads, instead of requring several instances of the JVM to run? I know this article presented a fully working example, and I believe I know enough to do it but I wanted ot use the article as a reference to make sure it is done right. I know that each app basically would use the same one "launcher" program that would on first launch "listen" to a port, as well as send a message through the port to see if an existing launcher was running. If it does, it hands off the Java app to be run to the existing luancher application and shuts down the 2nd launching app. By using this method, the JVM eats up its normal memory, but each Java app only consumes its necessary memory as well and doesn't use up more JVM instance memory.
Thanks.

<pre>
import java.util.Properties;
import java.io.FileInputStream;
import java.io.IOException;
import java.lang.reflect.Method;
import java.lang.reflect.InvocationTargetException;
import java.util.Enumeration;
import java.util.NoSuchElementException;
public class RunProg implements Runnable, Cloneable
private String iProg;
private String iArgs[];
public static void main(String args[])
new RunProg().main();
// first step is to start main program itself
private void main()
Properties properties = System.getProperties();
try
properties.load(new FileInputStream("RunProg.properties"));
catch(IOException e)
System.setProperties(properties);
int i = 0;
System.out.println("enter main, activeCount=" + Thread.activeCount());
while(true)
String program = properties.getProperty("Prog" + i);
if(program == null)
break;
StringTokenizer st = new StringTokenizer(program);
String[] args = new String[st.countTokens() - 1];
try
RunProg rp = (RunProg)this.clone();
rp.iProg = st.nextToken();
for(int j = 0; st.hasMoreTokens(); j++)
     args[j] = st.nextToken();
rp.iArgs = args;
Thread th = new Thread(rp);
th.setName("prog" + i + "=" + program);
th.start();
System.out.println("prog" + i + "=" + program + ", started");
catch(CloneNotSupportedException e)
System.out.println("prog" + i + "=" + program + ", can't start");
i++;
     System.out.println("end of main, activeCount=" + Thread.activeCount());
// next step is to start all others one by one
public void run()
try
Class c = Class.forName(iProg);
Class p[] = new Class[1];
p[0] = String[].class;
Method m = c.getMethod("main", p);
Object o[] = new Object[1];
o[0] = iArgs;
m.invoke(null, o);
catch(ClassNotFoundException e)
System.out.println(iProg + "ClassNotFoundException");
catch(NoSuchMethodException e)
System.out.println(iProg + "NoSuchMethodException");
catch(InvocationTargetException e)
System.out.println(iProg + "NoSuchMethodException");
catch(IllegalAccessException e)
System.out.println(iProg + "NoSuchMethodException");
System.out.println(Thread.currentThread().getName() + ", ended");
System.out.println("exit run, activeCount=" + Thread.activeCount());
// setup SecurityManager to disable method System.exit()
public RunProg()
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     System.setSecurityManager(sm);
// inner-class to disable method System.exit()
protected class mySecurityManager extends SecurityManager
     public void checkExit(int status)
          super.checkExit(status);
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* inner-class to analyze StringTokenizer. This class is enhanced to check double Quotation marks
protected class StringTokenizer implements Enumeration
private int currentPosition;
private int maxPosition;
private String str;
private String delimiters;
private boolean retTokens;
* Constructs a string tokenizer for the specified string. All
* characters in the <code>delim</code> argument are the delimiters
* for separating tokens.
* <p>
* If the <code>returnTokens</code> flag is <code>true</code>, then
* the delimiter characters are also returned as tokens. Each
* delimiter is returned as a string of length one. If the flag is
* <code>false</code>, the delimiter characters are skipped and only
* serve as separators between tokens.
* @param str a string to be parsed.
* @param delim the delimiters.
* @param returnTokens flag indicating whether to return the delimiters
* as tokens.
public StringTokenizer(String str, String delim, boolean returnTokens)
currentPosition = 0;
this.str = str;
maxPosition = str.length();
delimiters = delim;
retTokens = returnTokens;
* Constructs a string tokenizer for the specified string. The
* characters in the <code>delim</code> argument are the delimiters
* for separating tokens. Delimiter characters themselves will not
* be treated as tokens.
* @param str a string to be parsed.
* @param delim the delimiters.
public StringTokenizer(String str, String delim)
this(str, delim, false);
* Constructs a string tokenizer for the specified string. The
* tokenizer uses the default delimiter set, which is
* <code>"\t\n\r\f"</code>: the space character, the tab
* character, the newline character, the carriage-return character,
* and the form-feed character. Delimiter characters themselves will
* not be treated as tokens.
* @param str a string to be parsed.
public StringTokenizer(String str)
this(str, " \t\n\r\f", false);
* Skips delimiters.
protected void skipDelimiters()
while(!retTokens &&
(currentPosition < maxPosition) &&
(delimiters.indexOf(str.charAt(currentPosition)) >= 0))
currentPosition++;
* Tests if there are more tokens available from this tokenizer's string.
* If this method returns <tt>true</tt>, then a subsequent call to
* <tt>nextToken</tt> with no argument will successfully return a token.
* @return <code>true</code> if and only if there is at least one token
* in the string after the current position; <code>false</code>
* otherwise.
public boolean hasMoreTokens()
skipDelimiters();
return(currentPosition < maxPosition);
* Returns the next token from this string tokenizer.
* @return the next token from this string tokenizer.
* @exception NoSuchElementException if there are no more tokens in this
* tokenizer's string.
public String nextToken()
skipDelimiters();
if(currentPosition >= maxPosition)
throw new NoSuchElementException();
int start = currentPosition;
boolean inQuotation = false;
while((currentPosition < maxPosition) &&
(delimiters.indexOf(str.charAt(currentPosition)) < 0 || inQuotation))
if(str.charAt(currentPosition) == '"')
inQuotation = !inQuotation;
currentPosition++;
if(retTokens && (start == currentPosition) &&
(delimiters.indexOf(str.charAt(currentPosition)) >= 0))
currentPosition++;
String s = str.substring(start, currentPosition);
if(s.charAt(0) == '"')
s = s.substring(1);
if(s.charAt(s.length() - 1) == '"')
s = s.substring(0, s.length() - 1);
return s;
* Returns the next token in this string tokenizer's string. First,
* the set of characters considered to be delimiters by this
* <tt>StringTokenizer</tt> object is changed to be the characters in
* the string <tt>delim</tt>. Then the next token in the string
* after the current position is returned. The current position is
* advanced beyond the recognized token. The new delimiter set
* remains the default after this call.
* @param delim the new delimiters.
* @return the next token, after switching to the new delimiter set.
* @exception NoSuchElementException if there are no more tokens in this
* tokenizer's string.
public String nextToken(String delim)
delimiters = delim;
return nextToken();
* Returns the same value as the <code>hasMoreTokens</code>
* method. It exists so that this class can implement the
* <code>Enumeration</code> interface.
* @return <code>true</code> if there are more tokens;
* <code>false</code> otherwise.
* @see java.util.Enumeration
* @see java.util.StringTokenizer#hasMoreTokens()
public boolean hasMoreElements()
return hasMoreTokens();
* Returns the same value as the <code>nextToken</code> method,
* except that its declared return value is <code>Object</code> rather than
* <code>String</code>. It exists so that this class can implement the
* <code>Enumeration</code> interface.
* @return the next token in the string.
* @exception NoSuchElementException if there are no more tokens in this
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* @see java.util.Enumeration
* @see java.util.StringTokenizer#nextToken()
public Object nextElement()
return nextToken();
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* @return the number of tokens remaining in the string using the current
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* @see java.util.StringTokenizer#nextToken()
public int countTokens()
int count = 0;
int currpos = currentPosition;
while(currpos < maxPosition)
* This is just skipDelimiters(); but it does not affect
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while(!retTokens &&
(currpos < maxPosition) &&
(delimiters.indexOf(str.charAt(currpos)) >= 0))
currpos++;
if(currpos >= maxPosition)
break;
int start = currpos;
boolean inQuotation = false;
while((currpos < maxPosition) &&
(delimiters.indexOf(str.charAt(currpos)) < 0 || inQuotation))
if(str.charAt(currpos) == '"')
inQuotation = !inQuotation;
currpos++;
if(retTokens && (start == currpos) &&
(delimiters.indexOf(str.charAt(currpos)) >= 0))
currpos++;
count++;
return count;
</pre>
RunProg.properties like this:
Prog1=GetEnv 47838 837489 892374 839274
Prog0=GetEnv "djkfds dfkljsd" dsklfj

Assign a matrix to a JTable? Possible?

OK. I will not know the incomming data matrix untill it is assigned. Is there anyway to put the following matrix into a JTable without a headache? All I see are examples of Object class variables assigned to JTables. If anyone knows how to make this work I will appreciate it very much. Here is what I have come up with as an idea:
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[/code[
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cannot resolve symbol
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location: class javax.swing.JTable
final JTable originalDMatrixT = new JTable(originalDMatrix);
^
1 error
Errors compiling Results.

Changing to strings gave same result but with Object:
symbol : constructor JTable (java.lang.Object[][])
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Using getRuntime().exec() with Serlvet to run applications in Solaris

I am currently doing a project which requires the execution of Solaris applications through the use of Java Servlet with this Runtime method - Runtime.getRuntime.exec()
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When I tried running this program on a Windows 2000 machine, it works perfectly fine. However, when I tried it on a Solaris machine, nothing happens. And I mean nothing... no errors, no nothing. I really don't know what's wrong.
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My email address - [email protected]
I appreciate it.
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Hi!
I'm no expert, but I think I remember doing something similar a few months ago, and I think the problem was that the UNIX server does not know which shell to use. The solution was this:
Create a script that starts the program on the server, and be sure to include a first row saying:
#!/bin/ksh
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How to execute an application in Solaris using Runtime.getRuntime.exec() ?

I am currently doing a project which requires the execution of Solaris applications through the use of Java Servlet with this Runtime method - Runtime.getRuntime.exec()
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public void doPost(HttpServletRequest request, HttpServletResponse response)
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I appreciate it.
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it is possible that you are trying to run a program that is going to display a window on an X server, but you have not specified a display. You specifiy a display by setting the DISPLAY environment variable eg.
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My questions are these: is there an easier way to go about this? Is there a way to invoke the compiler to get its output only, WITHOUT directly compiling a class? Is there a Magic Library designed for this that I've somehow overlooked? I know JDB only works on already-compiled class files; there's a tool called Checkstyle that seems to be more for formatting and subtle issues of style (hence, the name) than actual error checking (not to mention, it requires compiled code as well).
Any thoughts would be greatly appreciated, all. :) Let me know if you need more info.

>
I checked the console after the freeze; it's handing me a NullPointerException for that line, which would be understandable except all of the arguments to call() can deal with null values. ( http://download.oracle.com/javase/6/docs/api/javax/tools/JavaCompiler.html )
From the javadoc for ToolProvider.getSystemJavaCompiler():
Returns:
the compiler provided with this platform or null if no compiler is providedSo it's definitely possible that compiler.getTask(null, null, null, getOptions(), null, fileObjects) returns null.
Indeed that's what I would expect from a browser's JVM (which includes only a JRE, and not a JDK).
Edited by: jduprez on Apr 29, 2011 2:56 PM
Ah, ah, I missed your latest edit while I was reading the API Javadoc :o)
Glad you found out!

Get any Spoken Text from the OS as text out of applescript

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You could save the game:
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g4e2
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f2f4
g5f4
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f4f3
e4f6
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f2b2
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b2b4
a5a6
b4b5
a6b5
c3c4
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f6d5
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<string>8/5p2/8/3k4/8/8/8/4K3 w - - 0 32</string>
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<string>16:47:19</string>
<key>Variant</key>
<string>losers</string>
<key>White</key>
<string>Computer</string>
<key>WhiteType</key>
<string>program</string>
</dict>
</plist>

List of reports using custom OM object

Hi Experts,
I have a requirement to retrieve all the reports and interfaces which are using a custom OM object. Since I cannot do a where used list for the custom object in HRP 1000, which approach I should use ?
Thanks in advance.
Regards,
Megha

Megha,
You can use SAP program RS_ABAP_SOURCE_SCAN to search for your custom object used in SAP programs. In this report you can specify the search string, program name (can be Z*) and other selection criteria.
This program will give the list of all the SAP objects where your string is being used. This program may take some time for processing depending on your selection criteria.

Rfc_Call_Transaction parameters

Hi:
I'm trying to perform a transaction with the RFC function Rfc_Call_Transaction, I put all the parameters: Transaction, Screen, dynpro, etc. But I'm missing something, I'm reciving 'Start screen does not exist in batch input data'
¿Can anyone help me?
Thanks.

Yes, it's solved (i can´t mark it, don't know why)
Ok, I made a funtion to create a record on the DBCDATA structure, simple:
        private BDCDATA FillBDCDATA(string Program,
                                    string Dynbegin,
                                    string Dynpro,
                                    string Fnam,
                                    string Fval)
            BDCDATA st_DATA = new BDCDATA();
            st_DATA.Program = Program;
            st_DATA.Dynbegin = Dynbegin;
            st_DATA.Dynpro = Dynpro;
            st_DATA.Fnam = Fnam;
            st_DATA.Fval = Fval;
            return st_DATA;
This result will be added in the tblBDCDATA table (this can be done in .NET based languages, thanks to the garbage collector, in other languages something like this could be very dangerous)
The calling funtion works like this, take special attention on the sequence sended to the above function, this order is exactly the same of a transaction register generated inside SAP, hope is usefull.
        private void button3_Click(object sender, System.EventArgs e)
            SAPProxy proxy = null;
            txtMsg.Text = "";
            try
                proxy = new SAPProxy("ASHOST=" + txtHost.Text +
                    " SYSNR=" + txtSysnr.Text +
                    " CLIENT=" + txtMand.Text +
                    " LANG="   + txtLang.Text +
                    " USER="   + txtUser.Text +
                    " PASSWD=" + txtPass.Text);
            catch(Exception excpt)
                txtMsg.Text = excpt.Message;
            if (proxy == null)
                return;
            BDCDATATable tblBDCDATA = new BDCDATATable();
            MESSAGEINF infMessage = new MESSAGEINF();
            // call to FillBDCDATA(    Program,   Dynbegin, Dynpro, Fnam, Fval)
            tblBDCDATA.Add(FillBDCDATA("SAPMKBUA",     "X", "0111", null, null));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BDC_OKCODE", "/00"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BPDY-BLDAT", "30.12.2004"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BPDY-VERSN", "0"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "FMPS-FIKRS", "ente"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BPDY-JAHR", "2005"));
            tblBDCDATA.Add(FillBDCDATA("SAPMKBUA", "X", "0320", null, null));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BDC_OKCODE", "=PERI"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "ERFA_ZEILE_IN", "1"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BPFMPS-FISTL(01)", "GRCOMW"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BPFMPS-FIPOS(01)", "G90230615"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BPAK-WERT(01)", "2"));
            tblBDCDATA.Add(FillBDCDATA("SAPLKBPP", "X", "0600", null, null));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BDC_OKCODE", "=CLOS"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BPDY-PERI1(01)", "350953.44"));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BPDY-PERI1(02)", "350953.44"));
            tblBDCDATA.Add(FillBDCDATA("SAPMKBUA", "X", "0320", null, null));
            tblBDCDATA.Add(FillBDCDATA(      null, null,   null, "BDC_OKCODE", "=BUCH"));
            try
                proxy.Rfc_Call_Transaction("FR33" /"FM9J"/,"", out infMessage, ref tblBDCDATA);
            catch(Exception excpt)
                txtMsg.Text = excpt.Message;
            /Document 0500106943 posted/
            txtMsg.Text = infMessage.Msgtx;

Is it possible to open / Launch a client/Destop Application from Web UI ?

Hi All,
I am using SAP CRM 7.0 EHP 1. I need to launch a custom .NET application ( .exe file ) from desktop, say. How could I do that?.
1. I tried using the following code
data program type string.
data commandline type string.
program = 'C:\Windows\notepad.exe'
call method cl_gui_frontend_services=>execute
exporting
application = program
parameter = commandline.
Which work fine from SAP GUI not from Web UI. I try to call it (the above code) from Transaction Launcher BOR methed, also didn't work!, I dont know if it is a standard feature !!.
2. I I tried javascript ,, it works,, but we don't want to do it that way as it demands lowering security !!!.
Now, can you tell me if there is any alternatives ???..
Any help/hint highly appreciated,,
Thanks, Sudeep..

In the report use the code
CALL METHOD cl_gui_frontend_services=>execute
EXPORTING
application = program
parameter = COMMANDLINE
maximized = 'X'
operation = 'OPEN'
create z transaction code and while creating transaction launcher put the Tcode in caps and try.
Rgds,
Shobhit

Start screen does not exist in batch input data

I'm using .NET Connector calling Rfc_Call_Transaction funtion throught a proxy, i stablished all the params as you can see in the code below, but i get the message cited in the subject 'Start screen does not exist in batch input data'.
What do you think is happening? or Where can i get the samples needed for perform this type of request?
        private BDCDATA FillBDCDATA(string Program,
                                    string Dynbegin,
                                    string Dynpro,
                                    string Fnam,
                                    string Fval)
            BDCDATA st_DATA = new BDCDATA();
            st_DATA.Program = Program;
            st_DATA.Dynbegin = Dynbegin;
            st_DATA.Dynpro = Dynpro;
            st_DATA.Fnam = Fnam;
            st_DATA.Fval = Fval;
            return st_DATA;
        private void button3_Click(object sender, System.EventArgs e)
            SAPProxy proxy = null;
            try
                proxy = new SAPProxy("ASHOST=" + txtHost.Text +
                    " SYSNR=" + txtSysnr.Text +
                    " CLIENT=" + txtMand.Text +
                    " LANG="   + txtLang.Text +
                    " USER="   + txtUser.Text +
                    " PASSWD=" + txtPass.Text);
            catch(Exception excpt)
                txtMsg.Text = excpt.Message;
            if (proxy == null)
                return;
            BDCDATATable tblBDCDATA = new BDCDATATable();
            MESSAGEINF infMessage = new MESSAGEINF();
            //BDCDATA st_DATA = new BDCDATA();
            tblBDCDATA.Add(FillBDCDATA("SAPMKBUA", "0111", "0111", "BDC_OKCODE", "/00"));
            tblBDCDATA.Add(FillBDCDATA("SAPMKBUA", "0111", "0111", "BPDY-BLDAT", "30.12.2004"));
            tblBDCDATA.Add(FillBDCDATA("SAPMKBUA", "0111", "0111", "BPDY-VERSN", "0"));
            tblBDCDATA.Add(FillBDCDATA("SAPMKBUA", "0111", "0111", "FMPS-FIKRS", "ente"));
            tblBDCDATA.Add(FillBDCDATA("SAPMKBUA", "0111", "0111", "BPDY-JAHR", "2005"));
            proxy.Rfc_Call_Transaction("FM9J","", out infMessage, ref tblBDCDATA);
            txtMsg.Text = infMessage.Msgtx;

Jose,
I imagine you are passing, for the Dynbegin parameter of the private method FillBDCDATA, invalid values.
Why don't you try this way:
tblBDCDATA.Add(FillBDCDATA("SAPMKBUA", "X", "0111", " "," "));
tblBDCDATA.Add(FillBDCDATA(" ", " ", " ", "BDC_OKCODE", "/00"));
tblBDCDATA.Add(FillBDCDATA(" ", " ", " ", "BPDY-BLDAT", "30.12.2004"));
tblBDCDATA.Add(FillBDCDATA(" ", " ", " ", "BPDY-VERSN", "0"));
tblBDCDATA.Add(FillBDCDATA(" ", " ", " ", "FMPS-FIKRS", "ente"));
tblBDCDATA.Add(FillBDCDATA(" ", " ", " ", "BPDY-JAHR", "2005"));
I hope I could help you.
Regards,
Daniel Carvalho

String program

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