Reading from a txt file and storing into a list

i want to read a list of counters(String) which are there in a flat txt file and store them into a List.
Any suggestion will be helpful
sanjeev

Try this
try {
          FileReader fr = new FileReader("C:/abc.txt");
          BufferedReader br = new BufferedReader(fr);
          String record = null;
          while ((record = br.readLine()) != null)
               System.out.println(record );

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I have a VI and an attched .txt data file. Now I want to read the data from the .txt file and display it as an array in the front panel. But the result is not right. Any help?

I have a VI and an attched .txt data file. Now I want to read the data from the .txt file and display it as an array in the front panel. But the result is not right. Any help?
Attachments:
try2.txt ‏2 KB
read_array.vi ‏21 KB

The problem is in the delimiters in your text file. By default, Read From Spreadsheet File.vi expects a tab delimited file. You can specify a delimiter (like a space), but Read From Spreadsheet File.vi has a problem with repeated delimiters: if you specify a single space as a delimiter and Read From Spreadsheet File.vi finds two spaces back-to-back, it stops reading that line. Your file (as I got it from your earlier post) is delimited by 4 spaces.
Here are some of your choices to fix your problem.
1. Change the source file to a tab delimited file. Your VI will then run as is.
2. Change the source file to be delimited by a single space (rather than 4), then wire a string constant containing one space to the delimiter input of Read From Spreadsheet File.vi.
3. Wire a string constant containing 4 spaces to the delimiter input of Read From Spreadsheet File.vi. Then your text file will run as is.
Depending on where your text file comes from (see more comments below), I'd vote for choice 1: a tab delimited text file. It's the most common text output of spreadsheet programs.
Comments for choices 1 and 2: Where does the text file come from? Is it automatically generated or manually generated? Will it be generated multiple times or just once? If it's manually generated or generated just once, you can use any text editor to change 4 spaces to a tab or to a single space. Note: if you want to change it to a tab delimited file, you can't enter a tab directly into a box in the search & replace dialog of many programs like notepad, but you can do a cut and paste. Before you start your search and replace (just in the text window of the editor), press tab. A tab character will be entered. Press Shift-LeftArrow (not Backspace) to highlight the tab character. Press Ctrl-X to cut the tab character. Start your search and replace (Ctrl-H in notepad in Windows 2000). Click into the Find What box. Enter four spaces. Click into the Replace With box. Press Ctrl-V to paste the tab character. And another thing: older versions of notepad don't have search and replace. Use any editor or word processor that does.

Reading integers from a .txt file and computing means

I have a program that uses for loops to produce ten integers (1-10) are returns the average mean, geometric mean, and harmonic mean.
Now i need to change this program to read integers from a .txt file and return the same data. Basically i need to change my for statements that are incrementing to read the text file.
Thanks guys.

You haven't asked a question. You haven't posted code. What are you expecting here?
But I guess I'll take a stab at it and say you should look at the Scanner class
http://java.sun.com/javase/6/docs/api/java/util/Scanner.html
or BufferedReader
http://java.sun.com/javase/6/docs/api/java/io/BufferedReader.html
I'll never understand what makes people come to the forums, create an account, and ask a lazy question, when they could get a great answer much quicker through Google.
http://www.google.com/search?q=java+file+input (hint: look at the second search result)

Read numbers from a .txt file and display them in a graph

How can I get Labview 7 to read from a txt. file containing a lot of
coloumns with different datas? There`s only two of the coloumns that are
interesting to me, the first, that contains the time of the measuring, and
one in the middle, that contains the measured temperatures. I want Labview
to read this datas and display them graphicly.
Thanks from Stale

Here's one way.
You can also use the help-> find examples and search for "text".
2006 Ultimate LabVIEW G-eek.
Attachments:
Graph.vi ‏21 KB

Reading from a text file and displaying the contents with in a frame

Hi All,
I am trying to read some data from a text file and display it on a AWT Frame. The contents of the text file are as follows:
pcode1,pname1,price1,sname1,
pcode2,pname2,price2,sname1,
I am writing a method to read the contents from a text file and store them into a string by using FileInputStream and InputStreamReader.
Now I am dividing the string(which has the contents of the text file) into tokens using the StringTokenizer class. The method is as show below
void ReadTextFile()
                    FileInputStream fis=new FileInputStream(new File("nieman.txt"));
                     InputStreamReader isr=new InputStreamReader(fis);
                     char[] buf=new char[1024];
                     isr.read(buf,0,1024);
                     fstr=new String(buf);
                     String Tokenizer st=new StringTokenizer(fstr,",");
                     while(st.hasMoreTokens())
                                      pcode1=st.nextToken();
                           pname1=st.nextToken();
          price1=st.nextToken();
                          sname1=st.nextToken();
     } //close of while loop
                } //close of methodHere goes my problem: I am unable to display the values of pcode1,pname1,price1,sname1 when I am trying to access them from outside the ReadTextFile method as they are storing "null" values . I want to create a persistent string variable so that I can access the contents of the string variable from anywhere with in the java file. Please provide your comments for this problem as early as possible.
Thanks in advance.

If pcode1,pname1,price1,sname1 are global variables, which I assume they are, then simply put the word static in front of them. That way, any class in your file can access those values by simply using this notation:
MyClassName.pcode1;
MyClassName.pname1;
MyClassName.price1;
MyClassName.sname1

Help! Want to read from a xl file and get an output voltage value!!!

Hello..
I`m a beginner, so please help..
My program should output an voltage value that is read from an xl-file with one collum. The most important is that each values in the xl graph should be read per iteration. So that the file is read over time. I want to use this xl file to controll the output signal over time.
Can anyone show me how this VI would look like, and what would the xl file look like??

The easiest way to do this is to save your Excel file as a comma or tab separated text file and not the native Excel format. Then you can use Read From Spreadsheet File (on the File I/O palette). Using this, you can read the file all at once and then just have a 1D array that you can wire to a while or for loop so that with each iteration of the loop, you get one element in the array. A for loop automatically indexes an input array. Reading the file all at once will be more effecient that reading the file line by line.

Reading special characters from a flat file and inserting into DB

I'm reading data with special characters like . etc from a flat file , assigning the data to variable in my anonymous block and inserting into my DB. But the show up as inverted ? s. Any clues about how to do this?
If i try to do the insert directly it works. It seems like the error occurs when reading this data into a variable
thanks for the help
Lalit Bhatia

lalit, this is probably an character set problem, the default on Database creation tends to be 7bit Ascii which does not support special characters, it's been a while since I set up a db in this way, but you need to change settings in oracle.ini. The db will need to be restarted for this. Also, to check current settings try:
select * from NLS_DATABASE_PARAMETERS
You want an 8bit, unicode or multibyte character set. Sorry I cannot remember moer off the top of my head, try searching on NLS or character set

Importing data from a .txt file and have Acrobat create new pages

Hi everyone,
I've created a form in Acrobat 9 to be used as an invoice. I want to be able to import data from an excel spreadsheet or .txt file into all the form fields. I know that I can go Forms > Manage form Data > Import Data to import 1 record at a time, but say I have about 50 invoices to populate, is there a way to import all the records at once and have acrobat create a new invoice for each of the customer's records?
If there is a way, will it be compatible for Acrobat Reader users since this form will be used by someone who only has the Reader?
Really appreciate any help.

Sure.. this is what we use. "New Micro Right Click Tools"
http://www.nowmicro.com/rct/

I would like to get only specific channels from several .csv files and concatenate into one group.

Hello,
I am working with other groups and getting the data in daily .csv files. When I use the "concatenate groups" script along with a script on importing files, I end up getting a huge file that takes about an hour to concatenate. In order to reduce the amount of time and memory that this takes, I was hoping that someone could help me modify the script so that I could just list the channel name that I am interested in and concatinating only those channels rather than all of them.
For example, if voltage, temperature, pressure and time data are taken daily for 30 days, I would like to import only the temperature and time data (from .csv format) and concatenate into one group.
I have attached the .vbs files that I use.
Thanks in advance,
Alan
Attachments:
Import and concatenate files.zip ‏9 KB

Hi Alan,
Actually, the feature you're asking for is already in the code of mine that you sent back. Look on line 11 of the main VBScript: ChannelSet = "" ' "" or "1-" (DataPlugin) or "Sheet1" (EXCEL Wizard)
If this "ChannelSet" parameter is set to something other than "" or "1-" then it is used in line 78:
Call DataFileLoadSel(FilePaths(i), DataPlugin, ChannelSet)
Yo can specify the channel indices to load with an expression like this:
ChannelSet = "[1]/[1],[3]"
Let me know if you have further questions,
Brad Turpin
DIAdem Product Support Engineer
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each account has 3 values.. (password, balance,id_number)
my .db file contains the following.
pass201 250 9885 pass202 300 5547 pass203 700 1123
(this is 3 accounts)
I need to be able to read from this file and use each attribute within my program... HELP!

String[][] accounts = null;
try
     // Open a file input stream
     FileInputStream fileContents = new FileInputStream("filename");
     byte[] data = new byte[fileContents.available()];
     fileContents.read(data);
     fileContents.close();
     String contents = new String(data);
     StringTokenizer values = new StringTokenizer(data); // using space character as delimiter
     // Using 3 values per line
     int lines = (int)(values.countTokens()/3);
     int columns = 3;
     accounts = new String[lines][columns];
     for(int i=0; i<lines; i++)
          for(int j=0; j<columns; j++)
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}

I need help for reading from a .txt file.

My goal in this program is to display the data from the text file to the command prompt. Everything compiles, but its doesnt display the data.
It probably has to do with my constructer. So help with revising the constructing would be appreciated. I am new to programming by the way.
import java.util.*;
import java.io.*;
     class Inventory
     public static void main(String[] args)
          final int MAX = 50;
          InventoryItem[] items = new InventoryItem[MAX];
          StringTokenizer tokenizer;
          String line;
          String name;
          String file = " inventory.txt ";
          int units = 0;
          int count = 0;
          float price;
          try
               FileReader fr = new FileReader ("inventory.txt");
               BufferedReader inFile = new BufferedReader(fr);
               line = inFile.readLine();
               while (line !=null)
                    tokenizer = new StringTokenizer (line);
                    name = tokenizer.nextToken();
                    try
                         units = Integer.parseInt(tokenizer.nextToken());
                         price = Float.parseFloat(tokenizer.nextToken());
                         items[count++] = new InventoryItem(name, units, price);
                    catch (NumberFormatException exception)
                         System.out.println("error in input.Line ignored:");
                         System.out.println(line);
                    line = inFile.readLine();
               inFile.close();
               for (int i = 0; i<count; i++)
                    System.out.println (items);
          catch (IOException exception)
               System.out.println("The file " + file + "was not found.");
     } //end of main method
}// end of Inventory class
public class InventoryItem
     private String name;
     private int units;
     private float price;
     public InventoryItem (String nameOfItem, int numOfUnits, float priceOfItem)
          name = nameOfItem;
          units = numOfUnits;
          price = priceOfItem;

Use CODE tags
What's not printing?
                    try
units =
its = Integer.parseInt(tokenizer.nextToken());
price =
ice = Float.parseFloat(tokenizer.nextToken());
items[count++] = new InventoryItem(name, units,
nits, price);
                    catch (NumberFormatException exception)
System.out.println("error in input.Line <========= THIS ???????
.Line ignored:");
                         System.out.println(line); <============= AND THIS???
                    line = inFile.readLine();
               inFile.close();
               for (int i = 0; i<count; i++)
                    System.out.println (items); <========== THIS IS OK, right?
If I have correctly indentified your problem, then the reason it's not printing is that your print statements are within a catch block, and evidently your code is not throwing any NumberFormatExceptions

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I can read the local multiple files by FLEX/AIR FileListEvent
and loader to read the large JPEG files but cannot display them
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def PATHS: String[] = [
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    "C://Ariel Atom//ariel-atom-2.jpg",
    "C://Ariel Atom//ariel-atom-3.jpg",
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function getImage(path: String): Image {
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        backgroundLoading: true
Stage {
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    height: 800
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Want to Read the a txt file and put the data into the table colums.

I have a text file in which data is piped separated and I want to put the data in the table column.
Eg.
Text File Column
First_name|Last_name|address|phone_number
Database table:
first_name ,last_name,address,phone_number
It's very urgent.
Thanks For your help in advance.
Himanshu

Use sqlldr or external file.
See http://download.oracle.com/docs/cd/E11882_01/server.112/e10701/part_ldr.htm#i436326 for SQL Loader.
See http://download.oracle.com/docs/cd/E11882_01/server.112/e10595/tables013.htm#ADMIN11705 for External table.

How to skip certain lines for a txt file and insert into array

so here is my question:
i had a file to read, and it requires to input into the array starting from a certain line
example:
4
john 25 M
mary 22 F
lee 20 M
faye 10 F
faye john
mary john
mary faye
i want to insert the friend list, starting 5th line into a 2d array, which is the int from first line +1.
can someone help me with it?
i believe there is a skip method and stuff..
but just dont know how to use it
may someone tell me how to do tat?

the thing is i think that takes too long and it is not efficient..
however...i just solved it with a better method
Scanner in = new Scanner (reader);
int size = Integer.parseInt(in.next());
BufferedReader insert = new BufferedReader(new FileReader(new File(input)));
String line = null;
int count = 0;
int startAtLineNo =size+1; // 0-based
while ((line = insert.readLine()) != null) {
if (count >= startAtLineNo) {
/* do stuff */
System.out.println(line);
// else ignore
count++;
thanks anyways

Scenario to read from txt-file and create a sales order

Hi,
i have started creating a scenario to read from an txt-file and to create a sales order.
When i activate my scenario, i get the following message :
    no scenario step (vBIU) associated for this step for the incoming system (SysId)
When i look into the detailed xml-file i see that all the records are read from the file, but there is no next step to be treated.
Has somebody any idea how this come ?
-<Msg MessageLog="true" msglogexcl="false" logmsg="0009" recording="true" BeginTimeStamp="20111202095144" MessageId="11120209514499820828C0A801674F24" xmlns="urn:com.sap.b1i.vplatform:entity">-<Header><msglog b1ifactive="true" always="false" step="Default message log"/>-<Resumption><starter ipo="/vP.0010000138.in_FEAN/com.sap.b1i.vplatform.runtime/INB_FI_EXST_ASYN_NAM/INB_FI_EXST_ASYN_NAM.ipo/proc"/></Resumption><IPO tid="11120205535899820808C0A801678C54" Id="INB_FI_EXST_ASYN_NAM"/><Sender Id="0010000138"/><Inbound file="ORDERS_TEST" ext="csv" path="C:\TEMP\In" pltype="txt" wrap="" deli=";"/></Header>-<Body><Payload Type="File exist" Role="T"/>-<Payload Role="S">-<io xmlns="urn:com.sap.b1i.bizprocessor:bizatoms" pltype="txt">
-<row>
<col>OH</col>
<col>0000087077</col>
<col>201110041205</col>
<col>220</col>
<col>9</col>
<col>201110191702</col>
<col>8710624300012</col>
<col>8714252008609</col>
<col>8710624300012</col>
<col>8714252008609</col>
<col>8710624300012</col>
<col>N</col>
<col>N</col>
<col>N</col>
</row>
-<row>
<col>OL</col>
<col>1</col>
<col>8711715844378</col>
<col>20</col>
</row>-<row>
<col>OL</col>
<col>2</col>
<col>8711715844392</col>
<col>60</col>
</rowrow>
<col>OL</col>
<col>16</col>
<col>8710251791092</col>
<col>280</col>
</row>
</io>
</Payload>
</Body>
</Msg>
This is my final atom :
<?xml version="1.0" encoding="UTF-8"?><xsl:stylesheet xmlns:b1e="urn:com.sap.b1i.sim:b1event" xmlns:b1ie="urn:com.sap.b1i.sim:b1ievent" xmlns:bfa="urn:com.sap.b1i.bizprocessor:bizatoms" xmlns:jdbc="urn:com.sap.b1i.adapter:jdbcadapter" xmlns:rfc="urn:sap-com:document:sap:rfc:functions" xmlns:sim="urn:com.sap.b1i.sim:entity" xmlns:utils2="com.sap.b1i.bpc_tools.Utilities" xmlns:vpf="urn:com.sap.b1i.vplatform:entity" xmlns:xci="urn:com.sap.b1i.xcellerator:intdoc" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" bfa:force="" vpf:force="" jdbc:force="" rfc:force="" b1ie:force="" b1e:force="" xci:force="" sim:force="" utils2:force=""><xsl:output method="xml" encoding="UTF-8" indent="yes"></xsl:output><xsl:param name="atom"></xsl:param><xsl:param name="sessionid"></xsl:param><xsl:variable name="msg" select="/vpf:Msg/vpf:Body/vpf:Payload[./@Role='S']"></xsl:variable><xsl:variable name="vpSender" select="/vpf:Msg/vpf:Header/vpf:Sender/@Id"></xsl:variable><xsl:variable name="vpObject" select="/vpf:Msg/vpf:Header/vpf:Sender/@ObjId"></xsl:variable><xsl:variable name="vpReceiver" select="/vpf:Msg/vpf:Header/vpf:ReceiverList/vpf:Receiver[./@handover='P']/@Id"></xsl:variable><xsl:template match="/">
<Msg xmlns="urn:com.sap.b1i.vplatform:entity">
<xsl:copy-of select="/vpf:Msg/@*"></xsl:copy-of>
<xsl:copy-of select="/vpf:Msg/vpf:Header"></xsl:copy-of>
<Body>
<xsl:copy-of select="/vpf:Msg/vpf:Body/*"></xsl:copy-of>
<Payload Role="R" id="{$atom}">
<xsl:call-template name="transform"></xsl:call-template>
</Payload>
</Body>
</Msg>
</xsl:template><xsl:template name="transform">
<FinalAtomResult xmlns="">
<BOM>
<BO>
<AdmInfo>
<Object>17</Object>
<Version>2</Version>
</AdmInfo>
     <Documents>
     <row>
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          <xsl:copy-of select="$msg/io/row[0]/col[2]/text()"></xsl:copy-of>
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     <DocDueDate>
          <xsl:copy-of select="$msg/io/row[0]/col[5]/text()"></xsl:copy-of>
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     <CardCode>KD10251</CardCode>
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     <U_PMX_JD_COMP>32</U_PMX_JD_COMP>
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Mike,
you were right, you may not specify the extension of a file.
Another thing i detected is that the loop of my data start with the index 1 instead of 0 !!!
In this scenario, i have to read all the lines of the file and each time i should do a SQL-query,
so that i can use the result to build my sales document.
Do you know if it this is possible or have you any idea how to do this ?
thx,
Mario

Reading from a txt file and storing into a list

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