Read at each new line from .txt file

Hi guys
I want to read from a file which I am saving using labview. What I am doing is reading 128 bytes fro VISA port and saving it in .txt file with new line constant. At some later time I want to read 128 bytes from that text file do some processing and display it. The "read from text file" vi has convert EOL but I am not able to configure it. Please help me..
Thanks in advance
Niladri

Hi Newbee_3,
Do 1 thing, Read the txt file & convert this into string, Then you have all the flexibility to do whatever you want.
Thanks
Kudos are always welcome if you got solution to some extent.
I need my difficulties because they are necessary to enjoy my success.
--Ranjeet

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Is there any way of solving this problem?
Thanks

Use a BufferedWriter and the newLine() method. It will use the appropriate newline String for the platform you are running on. In Windows this is "\r\n".

Delete a line from txt file

Is it possible to search for a string in a text file then
delete the line where the string is found.
For ex. if I have a list of names in a text file, I would
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Is each name on a separate line? If so, each line is
terminated with a , , etc. (unless it is in its
own table cell).
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Sample code below. There are other ways to handle it if the
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How to read data from txt file respectively

Hi,
I am triying to form an equation between two known points. I want to do this with the attached VI, the most critical point is that I will read the x1, y1, x2 and y2 coordinates from the same .txt file. They will be written in a .txt file and I will send them to the appropriate channel (x1, y1, x2 and y2) respectively. How can I get data in a rule from a .txt file?
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Best regards.
Attachments:
read from txt file.vi ‏8 KB

Dear RavensFan,
Thank you very much for your helps, I am bit new to labview so I usually can not find the appropriate functions easily. And a new problem has rised in my application. I should write the A, B and C numbers in the respective series to the file 2.txt. I am able to write them in a straight forward case but I want to write the next triples (A B C) in the next row. Like this;
A1 B1 C1
A2 B2 C2
A3 B3 C3
So how can I put new line constant and space constant to my VI?
Waiting for your valuable helps,
Best regards,
Attachments:
read_from_txt_fileMOD.vi ‏18 KB

Apostroph and euro sign not read corectly from txt file

apostroph and euro sign not read corectly from txt file.
my code is like this:
FileInputStream fis= new FileInputStream(x+".html");
BufferedReader br=new BufferedReader(new InputStreamReader(fis,"UTF-8"));
String Line="";
while ((Line = br.readLine()) != null) result+=Line;
br.close();
fis.close();
I use UTF-8 because the file contains also French characters.
What's the problem?
THANK YOU!

apostroph and euro sign not read corectly from txt
file.
my code is like this:
FileInputStream fis= new FileInputStream(x+".html");
BufferedReader br=new BufferedReader(new
InputStreamReader(fis,"UTF-8"));
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br.close();
fis.close();
I use UTF-8 because the file contains also French
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What's the problem?
THANK YOU!
This is from the FileInputStream API documentation:
FileInputStream is meant for reading streams of raw bytes such as image data. For reading streams of characters, consider using FileReader.

How can I input read a line from a file and output it into the screen?

How can I input read a line from a file and output it into the screen?
If I have a file contains html code and I only want the URL, for example, www24.brinkster.com how can I read that into the buffer and write the output into the screen that using Java?
Any help will be appreciate!
======START FILE default.html ========
<html>
<body>
 
<center>

Welcome to a DerekTran's Website! 
Underconstructions.... 
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Hello, 
 
I've been using the PWS to run the website on NT workstation 4.0. It was working
fine. 
The URL should be as below: 
http://127.0.0.1/index.htm or http://localhost/index.htm
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PeerWebServer.doc
 
CannotFindServer.doc
 
HOSTS file is not found
 
LMHOSTS file
 
How to Setup PWS on NT
 
Issdmin doc
Please be patient while the document is download....
 If you have any ideas please drop me a
few words at [email protected] 
 
 

 
</body>
</html>
========= END OF FILE ===============

Hi!
This is a possible solution to your problem.
import java.io.*;
class AddressExtractor {
 public static void main(String args[]) throws IOException{
 //retrieve the commandline parameters
 String fileName = "default.html";
 if (args.length != 0) fileName =args[0];
 else {
 System.out.println("Usage : java AddressExtractor <htmlfile>");
 System.exit(0);
 BufferedReader in = new BufferedReader(new FileReader(new File(fileName)));
 StreamTokenizer st = new StreamTokenizer(in);
 st.lowerCaseMode(true);
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 st.quoteChar('\"'); //set the " quote char
 int i;
 while (st.ttype != StreamTokenizer.TT_EOF) {
 i = st.nextToken();
 if (st.ttype == StreamTokenizer.TT_WORD) {
 if (st.sval.equals("href")) {
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 i = st.nextToken(); //then after it is the href value.
 getURL(st.sval); //retrieve address
 in.close();
 static void getURL(String s) {
 //Check string if it has http:// and truncate if it does
 if (s.indexOf("http://") > -1) {
 s = s.substring(s.indexOf("http://") + 7, s.length());
 //check if not mailto: do not print otherwise
 if (s.indexOf("mailto:") != -1) return;
 //printout anything after http:// and the next '/'
 //if no '/' then print all
 if (s.indexOf('/') > -1) {
 System.out.println(s.substring(0, s.indexOf('/')));
 } else System.out.println(s);
}Hope this helps. I used static methods instead of encapsulating everyting into a class.

How to get string (specified by line and column) from txt file with labview

Hi everyone
How to get string (specified by line and column) from txt file with labview
thx
Solved!
Go to Solution.

As far as I know, a text file has no columns. Please be more specific. Do you mean something like the 5th word on line 4, where words are separated by a space, and lines are separated by a newline character? You could the Read from Spreadsheet String function and set the delimiter to a space. This will produce a 2D array of strings. Then use index array and give the line number and column number.
- tbob
Inventor of the WORM Global

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how can I read lines from input file to java prog ?
I need to read from input text file, line after line
10x !

If you search in THIS forum with e.g. read lines from file, you will find answers like this one:
Hi ! This is the answer for your query. This program prints as the output itself reading line by line.......
import java.io.*;
public class readfromfile
public static void main(String a[])
if you search in THIS forum, with e.g. read lines from text file
try{
BufferedReader br = new BufferedReader(new FileReader(new File("readfromfile.java")));
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System.out.println(" line read :"+br.readLine());
}catch(Exception e)
e.printStackTrace();
}

Import data from txt-file with reading column names

Hello,
after changing the the export of my simulation programm I can't use the solution postet here, wich works well. (I branded the post as soluted thats why I start a ne post)
Can anybode please tell me how to adept the code to import the new type of txt file. Here the name of the columns are in the first line aof the columns, like this (with ignoring the first lines).
"TIME      "    "Sitzbasis_X"    "Sitzbasis_Y"    "Sitzbasis_Z"    "Achsklammer_Z"    "Antriebsachse_Z"    "Gegengewicht_Z"    "Lenkachse_Z"
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1.000000e-003    -1.722846e+003    -1.141275e+002    8.443419e+003    2.475389e+004    -7.533712e+004    -1.138092e+004    -9.624729e+003
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I added an example file
Thanks for Help
Gabriel
Solved!
Go to Solution.
Attachments:
TXT-File.txt ‏115 KB

Hello Gabriel
You can use the DataPlugin Wizard (Navigator>>File>>DataPlugin Wizard) to define a new file import filter for your data. It will take only one minute.
Please found the uri file I create for you. Copy the attached file to your disk, unpack it and double click the uri file.
Then you can open your file by using "open with".
Hope this help
Attachments:
TXT_File_DataPlugin.zip ‏4 KB

Problem while reading a line from a file

Hi all
I am facing a problem while readinga line from a file ,
line contains some french characters due to which it skips sequence, returning invalid record in a variable
e.g 'abcdefghÛLasasa'
Starting Point of Û is 9 and if
V1:=substr(''abcdefghÛLasasa',9,3)
result is v1='ÛLas' which is invalid
can i anybody help me out in resolving this problem

Hello,
What is your oracle version? And what is your expected result.
I used the same string and this is my output on 10.2.
select substr('abcdefghÛLasasa',9,3) mystring from dual;
MYS
ÛLa
1 row selected.Regards
Edited by: OrionNet on Jan 29, 2009 12:45 AM

JTextArea How do I add text on a new line from Text field

I want to put each new input from the text field at the start of a new line and keep the previous entries at the start of their
own line.
I'm doing this but need help with the new line.
jTextArea1.setLineWrap(true);
jTextArea1.setWrapStyleWord(true);
jTextArea1.setEditable(false);
public void textProcess()
System.out.println(sourceref1.getSourceText());
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The above just keeps adding on the new text until I reach the word wrap limit.
Thanks

Maybe you should use the escape character. Anyway, you can consider use append(text:String) instead of getText() everytime.
Eg:
jTextArea1.append("\n"+source.getSourceText());

How to write new line to a File?

How to write new line to a file?
I have a string to be written to a file. the string contains "\n" in it. But why it is not showing the new line in the file.
I have tryed FileWriter class and FileOutputStream class, but none of them works?
any suggestion please...

Probably using PrintStream::println() is a portable way.
import java.io.FileOutputStream;
import java.io.PrintStream;
public class NewLine {
    public static void main(String[] args) {
     try {
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         ps.write("string".getBytes());
         ps.println();
         ps.close();
     } catch (java.io.IOException e) {
         e.printStackTrace();
}Regards,

New line in text-files

Hallo,
this I have a problem with writing data in a text-file. How can tell LabVIEW (6.1) to begin a new line in the file?
I already tried the [carriage return] -- constant, building arrays, building spreadsheat strings from array etc.. Everything wit no success.
Can anybody of you help me?
Thanks a lot, Arno

Send an End of line character to the file. You can find an End of line constant in the string pallette.

How to delete string or line from unix file(dataset) of application server

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After transfer workarea information or all records into dataset(unix file). When I see the file in application server automatically the last line is shown a blank line. I am not passing any blank line.
I have tried for single record than also the file generates the last line(2nd line) also a blank line.
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Thanks
Tirumula Rao Chinni

Hi Rio,
I faced similar kind of issue working with files on UNIX platform.
The line is a line feed to remove it use
DATA : lv_carr_linefd TYPE abap_cr_lf VALUE cl_abap_char_utilities=>cr_lf.
DATA : lv_carr_return TYPE char1,
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Unable to load new information from configuration file /var/ldap/ldap_clien

Hi all,
When I run the command "ldapclient init", I got the error message:
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Unable to load new information from configuration file '/var/ldap/ldap_client_file' ('Unable to open filename '/var/ldap/ldap_client_file' for reading (errno=2).').
Any idea?
Thanks a lot for your help!

Does the profile UserProfile exist on your LDAP server?
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Read at each new line from .txt file

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