Getting the char length

Hello all!!
I´m working with type C, and I wonder how can I get, in my program, the length of a variable or a parameter declarated like this:
PARAMETER: chain(10).
I know that its lenght is 10 (max) but I would like to know if there is a way in ABAP to get it dynamically, I mean, in the program.
Thank you very much.
Reyes.

use describe statement as follows.
data: n type i.
describe field chain length n.
if you want exact length of the content in chain.
then use strlen().
regds,
kiran

Similar Messages

Getting the max length

i am using pl/sql and i need to do some validation regarding the max length of the string. but the problem is that i have to refer back to the database for the length so that if the database change, my code don't change.
is there any way to get the max length in the field of the table?
eg:
lets say i got a table call Person with column Name(varchar2(66)) and Sex(char(1))
so how i retrieve the max length of the field Name?
thanks

It's quite simple. We can use the PL/SQL %TYPE in our declarations. Check it out...
SQL> CREATE TABLE small1 (col1 NUMBER, col2 VARCHAR2(3))
2 /
Table created.
SQL>
SQL> CREATE OR REPLACE PROCEDURE small1_api (pv_string IN VARCHAR2)
2 AS
3      l_col2 small1.col2%TYPE;
4 BEGIN
5      l_col2 := pv_string;
6      INSERT INTO small1 (col1, col2)
7      VALUES (a12.NEXTVAL, l_col2);
8 EXCEPTION
9      WHEN value_error THEN
10          dbms_output.put_line('oops! string is too long');
11 END;
12 /
Procedure created.
SQL> EXEC small1_api('APC')
PL/SQL procedure successfully completed.
SQL> EXEC small1_api('APC4')
oops! string is too long
PL/SQL procedure successfully completed.
SQL>
SQL> ROLLBACK
2 /
Rollback complete.
SQL> ALTER TABLE small1 MODIFY (col2 VARCHAR2(4))
2 /
Table altered.
SQL> ALTER PROCEDURE small1_api COMPILE
2 /
Procedure altered.
SQL>
SQL> EXEC small1_api('APC4')
PL/SQL procedure successfully completed.
SQL> EXEC small1_api('APC45')
oops! string is too long
PL/SQL procedure successfully completed.
SQL> Cheers, APC

How to get the correct length...removing appended extra ascii characters

I have a table fs_lg_partgroups, having the columns description,subgroupname.
I have a query like this..
select description,length(description) from fs_lg_partgroups where subgroupname='FORMULA226';
Then i got the output as
formula226 and the length is 42. Even though there are 10 characters only.
I came to know that some ascii characters are appended to description values, so it is showing the length like this.
But i don't know how to remove those ASCII characters from description column for all rows to get the exact length.
Please can u help me..

If you have used char data type then use varchar2 datatype instead of char datatype for description column.
Learn about char and varchar2 datatypes here.
http://download-east.oracle.com/docs/cd/B10501_01/server.920/a96524/c13datyp.htm#7223

Getting the unscaled length of

I'm developing a graphing application with FLEX 3 that will
be embedded into a PDF document (version 9). The graphing SWF is
pretty much finished, but I want to have greater control over the
scaling on the axis. If I graph the parametric equations x=cos(t)
and y=sin(t), the trace of these equations appears as an ellipse.
Is there some what if getting the unscaled length of the vertical
axis and the horizontal axis in pixels, so I can compute the exact
aspect ratio of the axes. If that is known, I can rescale using
scaleX and scaleY. Can anyone give me pointers?
dps

You can simply iterate through each line in text to get the widest line. Something like this:
Main();
function Main() {
    var text = app.selection[0],
    minLength, maxLength, start, end;
    for (var i = 0; i < text.lines.length; i++) {
        start = text.lines[i].characters[0].horizontalOffset,
        end = text.lines[i].characters[text.lines[i].characters.length-1].horizontalOffset;
        if (minLength == undefined || start < minLength) {
            minLength = start;
        if (maxLength == undefined || end > maxLength) {
            maxLength = end;
    var length = maxLength - minLength;
    $.writeln(length);
But this approach seems to be a little less precise than creating outlines since (I guess) it measures up to the beginning of the last character; discretionary hyphens, line brakes, etc. are not included into the measurement.

How to get the time length from send record command to record video really?

I have two buttons. Record/Stop
I press Record button to record the video and press Stop
button to stop recording.Now,I spend 1986 ms from press Record
button to press Stop button.
But the flv file's length is 1920 or 1910 or 1915 ms.
So I want to get the time length from send record command to
record video really.
Can you give me some suggests.
Thanks!

maybe you have lag in publishing.... are you try watch de
NetStream.liveDelay() method?
or start counting when NetStream.onStatus has
"NetStream.Record.Start" and "NetStream.Record.Stop" in information
objects....

Getting the Physical Length of a Piece of Text (in mm etc.) in Javascript

I'm trying to write a script in Indesign CS5 (Windows) that can measure the physical, 'rendered' length of two pieces of text of similar length (in mm etc.), calculate the average length of the two, and adjust the tracking/horizontal scale of one or both of the pieces of text so that the physical length of both texts are the same.
I need a script because this task must be done thousands of time in a long document.
I'm struggling to find a way to access the 'rendered' length of a piece of text in Javascript.
I know among the attributes of a text box is whether the text has overrun. So I could copy the text to a special text-box, and use a for loop to reduce the dimentions of the text box, 1mm at a time, until the text box overruns, thus determining the length..
I could also get the length of a rendered string using python with it's built in GUI toolkit Tkinter:
http://stackoverflow.com/questions/2922295/calculating-the-pixel-size-of-a-string-with-pyt hon
And then have an indesign script that takes some data from the python script and sets the tracking/horizontal in Indesign with some fudge factors.
Both ideas seem like real kludges.
Any other suggestions?
Many thanks
David

You can simply iterate through each line in text to get the widest line. Something like this:
Main();
function Main() {
    var text = app.selection[0],
    minLength, maxLength, start, end;
    for (var i = 0; i < text.lines.length; i++) {
        start = text.lines[i].characters[0].horizontalOffset,
        end = text.lines[i].characters[text.lines[i].characters.length-1].horizontalOffset;
        if (minLength == undefined || start < minLength) {
            minLength = start;
        if (maxLength == undefined || end > maxLength) {
            maxLength = end;
    var length = maxLength - minLength;
    $.writeln(length);
But this approach seems to be a little less precise than creating outlines since (I guess) it measures up to the beginning of the last character; discretionary hyphens, line brakes, etc. are not included into the measurement.

How to get the real length of a 3D room

Hi, I want to built a 3d room. When I import a obj file, the vector3f length does not equal to the real length(much longer than the real one), I know there must be relation between them, but how I can get the relation?
for example:
T3Droom.setTranslation(new Vector3f(0.7f,1f,0.5f));
How many metres the 0.7f equals to?
thanks a lot

javax.mail.Address[] addrs= m.getFrom();
Address a = addrs[0];
if (a instanceof InternetAddress &&
((pers = ((InternetAddress)a).getPersonal()) != null)) {
String addr = ((InternetAddress)a).getPersonal();
} else
addr = a.toString();
this 'getPersonal()' is the thing you need.

How can I get the full-length ringtone "Calypso" back?

I recently updated my iPhone 4 to iOS 5. In iOS 5, Apple truncated the ringtone "Calypso." I would like to have the full-length ringtone back, as it is very special to me. Is there any way to make this happen?
A solution to this problem will be IMMENSELY appreciated.

I also had my ringtones...bought in Itunes...wiped out. So I went ahead and bought a new one. I synced it with the cable, and it is in the playlist as a ringtone. But when I go to edit the contact, the ringtone doesn't show up in the list. However, there is a Buy a Ringtone category at the top of the list.
On the upgrade, I lost a number of paid APPS. I don't know if its a scheme by Apple to make more money on a free upgrade or they just screwed up everyone with this.

Function module to get the chars and key figures of an infocube

Hi Everyone,
Can anyone please let me know is there any function module where if I pass the infocube name as the input parameter, it has to give me the output parameters its characteristics and key figures.
I require this to display the report in drilldown form i.e first the infocube name and then later its chars-i.e its fiscyear, etc and then compcode..
Thanks,
Prashant.

Thanks the fm is really very helpful, but is there anyother fm or table which stores all the record count of the infocubes in the bw systems according to there infoobjects, say for eg. infocube a has fiscyear and for the year 2000 or 2001 the no:0f records information.
It would be nice if anyone knows is there any fm which gives all these information.
Thanks,
Prashant.

How to i get the exact length of a playlist?

i am have upgraded iTunes
and AMONG the PLETHORA of un-needed and ANNOYING changes....
is the fact the the LENGTH of a playlist is posted at 1.6 or 2.4 etc.
i liked how it used to say 1hour 13 minutes
can anyone help me switch this back?

This is a change Apple have made you cannot revert it. To complain or express dissatisfaction here does not mean Apple read it this is a user to user forum. To let Apple know how you feel use the feedback link
http://www.apple.com/feedback/itunesapp.html

How to get the Char with a code?

I use function Asc to change a Char into an integer
But which function can I use to undo it?
eg.
messagebox.show(Asc("A"))   'it shows 65
messagebox.show(  *what can i use here* (65))   and it shows A ?

I use function Asc to change a Char into an integer
But which function can I use to undo it?
eg.
messagebox.show(Asc("A"))   'it shows 65
messagebox.show(  *what can i use here* (65))   and it shows A ?
Chr or ChrW, as shown here.
Still lost in code, just at a little higher level.

How can i get the length of a string with Simplified Chinese?

when i use eventwriter to add content to a xmldocument,there are some chinese simplified string in it,i use String.length() for the length ,but it is not correct~how can i get the right length for eventwriter?

Below is a simple patch for this problem. Using this patch you need to pass 0 as the length argument for any XmlEventWriter interfaces that take a string length.
Regards,
George
diff -c dbxml-2.3.10/dbxml/src/dbxml/nodeStore/NsEventWriter.cpp dbxml-2.3.10.patch/dbxml/src/dbxml/nodeStore/NsEventWriter.cpp
*** dbxml-2.3.10/dbxml/src/dbxml/nodeStore/NsEventWriter.cpp    Fri Nov 3 12:26:11 2006
--- dbxml-2.3.10.patch/dbxml/src/dbxml/nodeStore/NsEventWriter.cpp      Thu Mar 15 13:58:13 2007
*** 234,239 ****
--- 234,241 ----
        CHECK_NULL(text);
        CHECK_SUCCESS();
+       if (!length)
+               length = ::strlen((const char *)text);
        if (!_current)
                throwBadWrite("writeText: requires writeStartDocument");
        try {
*** 413,418 ****
--- 415,422 ----
        CHECK_NULL(dtd);
        CHECK_SUCCESS();
+       if (!length)
+               length = ::strlen((const char *)dtd);
        if (_current) {
                if (!_current->isDoc())
                        throwBadWrite("writeDTD: must occur before content");
diff -c dbxml-2.3.10/dbxml/src/dbxml/nodeStore/NsWriter.cpp dbxml-2.3.10.patch/dbxml/src/dbxml/nodeStore/NsWriter.cpp
*** dbxml-2.3.10/dbxml/src/dbxml/nodeStore/NsWriter.cpp Tue Jan 2 16:01:14 2007
--- dbxml-2.3.10.patch/dbxml/src/dbxml/nodeStore/NsWriter.cpp   Thu Mar 15 13:59:25 2007
*** 326,331 ****
--- 326,333 ----
                needsEscape = false;
        else
                needsEscape = true;
+       if (!length)
+               length = ::strlen((const char *)chars);
        writeTextWithEscape(type, chars, length, needsEscape);
*** 336,341 ****
--- 338,345 ----
                              bool needsEscape)
        if(_entCount == 0) {
+               if (!len)
+                       len = ::strlen((const char *)chars);
                if ((type == XmlEventReader::Characters) ||
                    (type == XmlEventReader::Whitespace)) {
                        char *buf = 0;
*** 381,386 ****
--- 385,392 ----
NsWriter::writeDTD(const unsigned char *data, int len)
        if(_entCount == 0) {
+               if (!len)
+                       len = ::strlen((const char *)data);
                _stream->write(data, len);
}

How to get the string's byte length?

I have some string,I want to get the string's byte length,how
can do it?
for example:
<cfoutput>#len('hihi，这是测试')#</cfoutput>
output is 9
I want to get the byte length is 14, how can i get it?
Thanks.

>> Fair cop. I didn't realise that asc() returned the
codepoint rather than the
> actual character code.
>
> and what would be the difference?
Oh, sorry, whatever the term is (I'm crap with jargon). The
value returned
by asc() for those chars was only two bytes (ie: four hex
digits). I
didn't realise there was more to it than that, and that
2-byte value maps
to some other THREE byte value. I need to do some reading...
> that's what both cf & java counted as the length.
CHARACTER length, sure. No-one's disputing that. On the other
hand,
no-one's asking about it, either.
> by adding a BOM you've already effected the encoding,
which may or may not
> match the original. so you still don't know how many
bytes were in the original
> string.
[groan]
Yes, that's a reasonable strawman there. I was only putting
it in a file
so I could save it and check the number of bytes occupied by
the data.
Clearly... CLEARLY... the OP is not asking for a character
length of that
string. They've said as much.
I copy and pasted the string from their post, and used it as
a
demonstration of how "nine" is not the right answer for the
BYTE LENGTH of
that string. Whether or not the original string was UTF-8,
UTF-16 or
special-marmoset-encoding, it almost certainly was NOT in a
fictitious kind
encoding in which each of those particular characters only
occupied one
byte each, which would mean that "nine" is the correct answer
to the
question.
When I copied those characters from either the web browser
for from my
text-based news agent, notepad identified them (and rendered
them
correctly) as UTF-8, so I'm fairly confident they ARE UTF-8.
Of course
this could be down to some intermediary encoding (pasting
them in to the
original posting, for example, via some encoding-transforming
mechanism),
but Occam's Razor suggests the original question was from a
UTF-8 POV.
But maybe we should quit speculating and ask the OP. Unless
they've
buggered off in despair of how drawn out all this is getting.
For which I
would not blame them.
Adam

Get the duration of all mp3 files inside a directory

Hello everyone,
I am working on a little project done with swing. Since I need an mp3 player inside my swing application, I found a really good solution with JavaFX 2. I have never worked with JavaFX before, therefor it seems to me a little bit strange on some parts.
Anyway.
I created a button on my application and as soon as somebody presses that button, the application should scan recursivly a unique directory for mp3 files and store the information of artist, title and track length into a database.
The mp3 player I created is based on the example from this page:
http://www.java2s.com/Code/Java/JavaFX/Mp3playerwithmetadataviewandcontrolpanel.htm
I understand the source code for most parts, but some behaivors are not really clear to me. My thoughts about getting the complete length of the mp3 file was
media.getDuration
or
mediaplayer.getTotalDuration
but both results are NaN if I call .toMillis();
Instead I need to create a listener (why?)
private class TotalDurationListener implements InvalidationListener {
    @Override
    public void invalidated(Observable observable) {
      final MediaPlayer mediaPlayer = songModel.getMediaPlayer();
      final Duration totalDuration = mediaPlayer.getTotalDuration();
      totalDurationLabel.setText(formatDuration(totalDuration));
}and register this listener on the mediaplayer
mp.totalDurationProperty().addListener(new TotalDurationListener());I can image that the mediaplayer can "host" several media objects somewho and the listener is called as soon as a new media will be added to the mediaplayer in order
the calculate the overall duration.
When is this listener exactly called and is there no other ways to get the total length of the mp3 file?
Here is a minimal example which should work without any external libs
package de.hauke.schwimmbad.application.playground;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import javafx.application.Platform;
import javafx.beans.property.ReadOnlyObjectWrapper;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.paint.Color;
import javafx.util.Duration;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.UIManager;
public class Testing10 extends JFrame {
     private MediaPlayer mediaPlayer;
     private final ReadOnlyObjectWrapper<MediaPlayer> mediaPlayerWrapper = new ReadOnlyObjectWrapper<MediaPlayer>(
               this, "mediaPlayer");
     public static void main(String[] args) {
          try {
               UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
               new Testing10();
          } catch (Exception ex) {
               System.out.println(ex);
     public Testing10() {
          super();
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          setLayout(null);
          setSize(500, 500);
          setTitle("Testing");
          setLocationRelativeTo(null);
          setResizable(false);
          JButton button = new JButton("Scan");
          button.setBounds(10, 10, 150, 30);
          add(button);
          button.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent arg0) {
                    scan();
          final JFXPanel fxPanel = new JFXPanel();
          fxPanel.setBounds(30, 80, 300, 300);
          add(fxPanel);
          Platform.runLater(new Runnable() {
               public void run() {
                    initFX(fxPanel);
          setVisible(true);
     private void scan() {
          File directory = new File("C:\\dev\\mp3");
          List<File> mp3Files = new ArrayList<File>();
          for (File file : directory.listFiles()) {
               if(file.getName().endsWith("mp3")) {
                    mp3Files.add(file);
          for (File file : mp3Files) {
               System.out.println(file.getAbsoluteFile());
               getLength(file);
     private Duration getLength(File file) {
          if(mediaPlayer != null) {
               mediaPlayer.stop();
          final Media media = new Media(file.toURI().toString());
          mediaPlayer = new MediaPlayer(media);
          mediaPlayerWrapper.setValue(mediaPlayer);
          if(media.durationProperty()==null) System.out.println("durationProperty ist null");
          if(media.durationProperty().get()==null) System.out.println(".get() ist null");
          System.out.println("---> " + media.durationProperty().get().toMillis());
          return media.getDuration();
     private void initFX(JFXPanel fxPanel) {
          BorderPane root = new BorderPane();
          Scene scene = new Scene(root, Color.ALICEBLUE);
          fxPanel.setScene(scene);
}The other question is why do I need a listener for the meta data to be changed in order to get the meta data?
media.getMetadata().addListener(new MapChangeListener<String, Object>()Why can't I call something like
media.getMetadata() --> returns a filled map?
The metadata problem is not included inside the example from above.
Sorry for my english but I hope everybody can understand the issue.
Many greetings,
Hauke

The nature of the Media class is that it accesses it asynchronously. This means that when you create an instance of it, and then immediately query it, the data you want may not be available yet. This is all in the Javadoc, see the doc for Media:
The media information is obtained asynchronously and so not necessarily available immediately after instantiation of the class. All information should however be available if the instance has been associated with a MediaPlayer and that player has transitioned to MediaPlayer.Status.READY statusSo you could associate the Media with a MediaPlayer, and then wait until it goes to the Status READY, and then read the length of the Media.
As for your 2nd question, getMetadata() returns a Map. You can just loop through it:
for(Map.Entry<String, Object> entry : media.getMetadata()) {
    // etc
}However, the same restrictions apply as with Media -- you will probably need to wait before the information is available -- that's why the Listener approach works, because it will notify you as soon as the information is added to the map.

How to get the name of the ApplicationServer during runtime

Within a Servlet or JSP, I'm trying to programmatically get the name of the JVM (AppServer) where the code (war or ear) is deployed and running under.
(This is like getting "server1" when using WSAD).
I tried the System, Runtime and Thread approaches with no luck.. any ideas??
Thanks.
Example:
If I have 2 AppServers created: Server1 and Server2
The ear could be deployed to either, but I want to show to the user if he/she is pointing to Server1 or Server2.

do you want to get the defined length of the field right.
i.e
itab-field1(10) .
and not the length of the value in the itab.
one of the ways is to use the following FM
move: sy-repid to wf_repid ,
        'INT_OUTPUT' to int_tab_name .
call function 'REUSE_ALV_FIELDCATALOG_MERGE'
   exporting
     i_program_name              = wf_repid
     i_internal_tabname          = int_tab_name
*   I_STRUCTURE_NAME             =
*   I_CLIENT_NEVER_DISPLAY       = 'X'
    i_inclname                   = wf_repid
    i_bypassing_buffer           = 'X'
*   I_BUFFER_ACTIVE              =
    changing
      ct_fieldcat                  = wf_fld_cat[]
   exceptions
     inconsistent_interface       = 1
     program_error                = 2
     others                       = 3
if sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
endif.
which would give you all the field definitions of your itab.
Raja

Getting the char length

Similar Messages

Maybe you are looking for