How to write a return in a text file.

Hi, i am trying to write diferent lines into a text file, i write strings ending with \r\n but it doesn't work, how could i write in diferent lines?
Thanks.

PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("myfile.txt")));
out.println("This is the first line");
out.println("This is the second line");
out.flush();
out.close();Jesper

Similar Messages

How to write the resultset into a text file

how to write the resultset into a text file

You can use the java.io.* package to write to files.
API: http://java.sun.com/j2se/1.5.0/docs/api/java/io/package-summary.html
Tutorial: http://java.sun.com/docs/books/tutorial/essential/io/index.html

HOW TO WRITE AND READ FROM A TEXT FILE???

How can I read from a text file and then display the contents in a JTextArea??????
Also how can I write the contents of a JTextArea to a text file.
Extra Question::::::: Is it possible to write records to a text file. If you have not idea what I am talking about then ignore it.
Manny thanks,
your help is much appreciated though you don't know it!

Do 3 things.
-- Look through the API at the java.io package.
-- Search previous posts for "read write from text file"
-- Search java.sun.com for information on the java.io package.
That should clear just about everything up. If you have more specific problems, feel free to come back and post them.

How to write list values to a text file?

Hi. Does anyone know how to write values stored in a List to a text file? I have a program that asks the user to enter a name and stores it in a list. The number of names in the list depends on how many times the user wants to enter a name. The problem is that my writeToFile method, which handles writing values to a text file, only writes one name and overwrites any previous names. How could I fix this so that it goes thru the list and writes every value to the file? Any hints would be appreciated!
peace
Chris
import java.util.*;
import java.io.*;
public class StoreNames
String name;
char answer;
BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
public void anotherName(List a)throws IOException
System.out.println("Enter another name? (Y or N)");
answer = (char)System.in.read();
System.in.skip(2);
while(answer == 'Y' || answer == 'y')
inputName(a);
System.out.println("Enter another name? (Y or N)");
answer = (char)System.in.read();
System.in.skip(2);
if (answer == 'N' || answer == 'n')
System.out.println("Ok. GoodBye");
writeToFile(a);
//prompts user to input names
public void inputName(List a) throws IOException
System.out.print("Enter a name: ");
name = input.readLine();
a.add(name);
public void writeToFile(List a)throws IOException
PrintWriter output = new PrintWriter(new FileWriter("names.txt"));
output.print(name); //Problem area - handles only one line of input, overwrites previous input
output.close();

System.out is an instance of PrintStream (check the API documents for the System class to see this).
So the easiest way to convert from a "print to screen" class to a "print to file" class is to acquire a PrintStream that prints to a file, and use it exactly the same as you'd have used System.out...
So start with your console code...
        PrintStream out = System.out;
        for(int i = 0; i <10; i++){
            out.println("Number " +i);
        }Then you adapt to file code:
        FileOutputStream fos = new FileOutputStream("temp.txt");
        PrintStream out = new PrintStream(fos);
        for(int i = 0; i <10; i++){
            out.println("Number " +i);
        out.flush();
        out.close();Note that we flush the stream because for reasons of efficiency files aren't necessarily written to disk until you explicitly ask the system to do so (memory is fast, disks are slow, that's why).
Closing the stream releases system resources associated with it.
Actually, that's redundant, because close calls flush automatically, but I left it in for clarity.
Any use ?

How to Write Waveform graph data to Text File with user option to do so

So, I'm new to labview and am having trouble writing one program in particular. I have a waveform graph that runs for 120 seconds generating a sine curve. I am, however, having a difficult time getting the program to write the x and y coordinates into a text file. I have attached what I have so far.
The first task I was assigned was to write a program that creates a snusoidal curve on the front pannel adding one data point each half second for 120 seconds. The plot should only start when the user presses a start button.
The next part involves giving the user an option to write the generated data to a spreadsheet file called "sine.txt". The file name and location should be hardcoded. The file should contain the x and y coordinates of each data point in columns separated by tabs, also known as delimited.
I have spent several hours tweaking the attached program and I just can't seem to get it to work right. Any suggestions would help at this point.
Sincerely,
A frustrated chemistry student whose research mentor is out of town
Solved!
Go to Solution.
Attachments:
Sinusoidal Curve (saving to excel).vi ‏45 KB

First, you are not creating Excel files. You are creating text files. And it seems that your Write to file is already creating X (time) vs. Y (data curve) that is tab delimited.
Everything else you are doing is just too complicated or a Rube Goldberg.
All you need is the attached.
Attachments:
Sinusoidal_Curve_(saving_to_Text_file).vi ‏69 KB

How to Write log messages in a text file located in another machine

Basically My application is distributed across two or more tomcat servers running in multiple machines.And I get a log4j logs in the respective machines.
But I want a consolidated log message in a single machine.
How do i get that done??
Any samples?? Any clues??
Any specific technoliges??

Create an RMI application (for example) that writes the log, and let all logging calls call that remote application.
Something like that is the only feasible way that doesn't require you to have a drive on the remote machine mapped to the local one (which causes its own problems as you could have multiple simultaneous write attempts...).

Write BAPI return messages into text

Dear experts,
              I want to write error messages into a text file. i tried in many ways like, using GUI_DOWNLOAD i converted messages to non sap but it creates only empty text file. Is there any other function module in sap?

Thanks Guys, here is my sample code...
tables:bapimathead,
        bapi_makt,
        bapi_mara,
        bapi_marax,
        bapi_marc,
        BAPI_MARCX.
data:begin of itab occurs 0,
       MATERIAL type BAPIMATHEAD-MATERIAL,
       IND_SECTOR TYPE BAPIMATHEAD-IND_SECTOR,
       MATL_TYPE type bapimathead-MATL_TYPE,
       PLANT type BAPI_MARC-PLANT,
       MATL_DESC TYPE BAPI_MAKT-MATL_DESC,
       BASE_UOM TYPE bapi_mara-BASE_UOM,
       MATL_GROUP type bapi_mara-MATL_GROUP,
*      OLD_MAT_NO TYPE BAPI_MARA-OLD_MAT_NO,
*      DIVISION TYPE BAPI_MARA-DIVISION,
*      UNIT_OF_WT TYPE BAPI_MARA-UNIT_OF_WT,
*      NET_WEIGHT TYPE BAPI_MARA-NET_WEIGHT,
*      DOCUMENT TYPE BAPI_MARA-DOCUMENT,
*      DOC_TYPE TYPE BAPI_MARA-DOC_TYPE,
       LANGU TYPE BAPI_MAKT-LANGU,
       PUR_GROUP TYPE BAPI_MARC-PUR_GROUP,
       MRP_TYPE TYPE BAPI_MARC-MRP_TYPE,
       MRP_CTRLER TYPE BAPI_MARC-MRP_CTRLER,
       LOTSIZEKEY TYPE BAPI_MARC-LOTSIZEKEY,
       PLND_DELRY TYPE BAPI_MARC-PLND_DELRY,
       SM_KEY TYPE BAPI_MARC-SM_KEY,
       end of itab.
DATA:    it_RETURN like bapiret2 OCCURS 0 WITH HEADER LINE,
          IT_BAPI LIKE BAPI_MAKT OCCURS 0 WITH HEADER LINE,
          IT_MSG LIKE TLINE OCCURS 0 WITH HEADER LINE.
parameters:p_file TYPE IBIPPARMS-PATH obligatory.
at selection-screen on value-request for p_file.
perform get_f4help.
start-of-selection.
perform upload_file_itab.
perform call_bapi.
*END-OF-SELECTION.
*PERFORM ERROR.
*&      Form get_f4help
form get_f4help .
CALL FUNCTION 'F4_FILENAME'
EXPORTING
    PROGRAM_NAME        = SYST-CPROG
    DYNPRO_NUMBER       = SYST-DYNNR
IMPORTING
    FILE_NAME           = P_FILE .
endform.                    " get_f4help
*&      Form upload_file_itab
form upload_file_itab .
DATA:V_FILE TYPE STRING.
MOVE P_FILE TO V_FILE.
CALL FUNCTION 'GUI_UPLOAD'
   EXPORTING
    filename                      = V_FILE
    FILETYPE                      = 'ASC'
    HAS_FIELD_SEPARATOR           = 'X'
   TABLES
     data_tab                      = ITAB .
endform.                    " upload_file_itab
*&      Form call_bapi
form call_bapi .
loop at itab.
BAPIMATHEAD-material = itab-MATERIAL.
bapimathead-IND_SECTOR = itab-IND_SECTOR.
BAPIMATHEAD-MATL_TYPE = itab-MATL_TYPE.
BAPIMATHEAD-BASIC_VIEW = 'X'.
BAPIMATHEAD-PURCHASE_VIEW = 'X'.
BAPIMATHEAD-MRP_VIEW = 'X'.
bapi_mara-MATL_GROUP = itab-MATL_GROUP.
bapi_mara-base_uom = itab-base_uom.
*BAPI_MARA-OLD_MAT_NO = ITAB-OLD_MAT_NO.
bapi_marax-MATL_GROUP = 'X'.
bapi_marax-BASE_UOM = 'X'.
*BAPI_MARA-DIVISION = ITAB-DIVISION.
*BAPI_MARA-UNIT_OF_WT = ITAB-UNIT_OF_WT.
*BAPI_MARA-NET_WEIGHT = ITAB-NET_WEIGHT.
*BAPI_MARA-DOCUMENT = ITAB-DOCUMENT.
*BAPI_MARA-DOC_TYPE = ITAB-DOC_TYPE.
IT_BAPI-LANGU = ITAB-LANGU.
IT_BAPI-LANGU_ISO = 'EN'.
IT_BAPI-MATL_DESC = ITAB-MATL_DESC.
BAPI_MARC-PLANT = ITAB-PLANT.
BAPI_MARC-PUR_GROUP = ITAB-PUR_GROUP.
BAPI_MARC-MRP_TYPE = ITAB-MRP_TYPE.
BAPI_MARC-MRP_CTRLER = ITAB-MRP_CTRLER.
BAPI_MARC-LOTSIZEKEY = ITAB-LOTSIZEKEY.
BAPI_MARC-PLND_DELRY = ITAB-PLND_DELRY.
BAPI_MARC-SM_KEY = ITAB-SM_KEY.
BAPI_MARCX-PLANT = 'X'.
BAPI_MARCX-PUR_GROUP = 'X'.
BAPI_MARCX-MRP_TYPE = 'X'.
BAPI_MARCX-MRP_CTRLER = 'X'.
BAPI_MARCX-LOTSIZEKEY = 'X'.
BAPI_MARCX-PLND_DELRY = 'X'.
BAPI_MARCX-SM_KEY = 'X'.
APPEND IT_BAPI.
clear it_bapi.
CALL FUNCTION 'BAPI_MATERIAL_SAVEDATA'
   EXPORTING
     headdata                  = BAPIMATHEAD
    CLIENTDATA                 = bapi_mara
    CLIENTDATAX                = bapi_marax
    PLANTDATA                  = BAPI_MARC
    PLANTDATAX                = BAPI_MARCX
    IMPORTING
    RETURN                     = it_RETURN
TABLES
    MATERIALDESCRIPTION        = IT_BAPI .
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT' .
LOOP AT IT_RETURN.
CALL FUNCTION 'RPY_MESSAGE_COMPOSE'
   EXPORTING
    LANGUAGE                = SY-LANGU
     MESSAGE_ID              = IT_RETURN-ID
     MESSAGE_NUMBER          = IT_RETURN-NUMBER
IMPORTING
    MESSAGE_TEXT            = IT_RETURN-MESSAGE
TABLES
    LONGTEXT                = IT_MSG
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDLOOP.
CALL FUNCTION 'GUI_DOWNLOAD'
   EXPORTING
*   BIN_FILESIZE                    =
    FILENAME                        = 'D:/DEMO.TXT'
    FILETYPE                        = 'ASC'
*   APPEND                          = ' '
*   WRITE_FIELD_SEPARATOR           = ' '
* IMPORTING
*   FILELENGTH                      =
   TABLES
     DATA_TAB                        = IT_RETURN
*   FIELDNAMES                      =
EXCEPTIONS
    FILE_WRITE_ERROR                = 1
    NO_BATCH                        = 2
    GUI_REFUSE_FILETRANSFER         = 3
    INVALID_TYPE                    = 4
    NO_AUTHORITY                    = 5
    UNKNOWN_ERROR                   = 6
    HEADER_NOT_ALLOWED              = 7
    SEPARATOR_NOT_ALLOWED           = 8
    FILESIZE_NOT_ALLOWED            = 9
    HEADER_TOO_LONG                 = 10
    DP_ERROR_CREATE                 = 11
    DP_ERROR_SEND                   = 12
    DP_ERROR_WRITE                  = 13
    UNKNOWN_DP_ERROR                = 14
    ACCESS_DENIED                   = 15
    DP_OUT_OF_MEMORY                = 16
    DISK_FULL                       = 17
    DP_TIMEOUT                      = 18
    FILE_NOT_FOUND                  = 19
    DATAPROVIDER_EXCEPTION          = 20
    CONTROL_FLUSH_ERROR             = 21
    OTHERS                          = 22
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
WRITE : /1 IT_RETURN-ID, 10 IT_RETURN-TYPE, 20 IT_RETURN-NUMBER, 25 IT_RETURN-MESSAGE.
ENDLOOP.
ENDFORM.
Text file generated and getting message like 0 bytes transferred.

How to write the nodevalue back to xml file?

Hi, Everybody:
These are two packages I used. javax.xml.parsers.*,org.w3c.dom.*
Now I use "setNodeValue("abc") to set the node value to "abc". But it is not really saved back into XML file. It only change the node value in memory.
How to write the changes back to XML file? Thank you very much for your help.
Michelle

* Version : 1.00
* File Purpose : Given the xml file loads into dom and recreate the file with the updated values.
* Developer : Kashif Qasim : 25/july/04
* Modify detail :
import java.lang.*;
import java.io.*;
import java.util.*;
import java.text.*;
import org.w3c.dom.*;
import org.apache.xerces.parsers.DOMParser;
import org.apache.xerces.*;
public class XMLWriter
private String displayStrings[] = new String[5000];
private int numberDisplayLines = 0;
private Document document;
//private final Node c;
public synchronized void displayDocument(String uri,Vector UpdatedValues,String getTaskID)
try {
DOMParser parser = new DOMParser();
parser.parse(uri);
document = parser.getDocument();
display(document, "",UpdatedValues);
} catch (Exception e) {
e.printStackTrace(System.err);
ReadXmlConfig objReadXmlConfig = null;
FileWriter filewriter = null;
try {
filewriter = new FileWriter(uri);
for(int loopIndex = 0; loopIndex < numberDisplayLines; loopIndex++){
filewriter.write(displayStrings[loopIndex].toCharArray());
//System.out.println("displayStrings[loopIndex].toCharArray() "+displayStrings[loopIndex].toString());
//filewriter.write("\n");
filewriter.close();
System.gc();
objReadXmlConfig = new ReadXmlConfig();
objReadXmlConfig.ITSLog("File updated for "+getTaskID+" succesfully, file is closed now ");
} catch (IOException e) {
System.err.println("Caught IOException: " + e.getMessage());
objReadXmlConfig = new ReadXmlConfig();
objReadXmlConfig.ITSErrorLog("File updated FAILED for "+getTaskID+". Reason for file error "+e.toString());
}finally {
if (filewriter != null) {
System.out.println("Closing File");
objReadXmlConfig =null;
try{
filewriter.close();
}catch(IOException e){
System.err.println("Caught IOException: " + e.getMessage());
} else {
System.out.println("File not open");
private void display(Node node, String indent, Vector UpdtRecs)
if (node == null) {
return;
int type = node.getNodeType();
NodeList nodeList = document.getElementsByTagName("QueryParm");
int TotalRecs = UpdtRecs.size();
switch (type) {
case Node.DOCUMENT_NODE: {
displayStrings[numberDisplayLines] = indent;
displayStrings[numberDisplayLines] +=
"<?xml version=\"1.0\" encoding=\""+
"UTF-8" + "\"?>";
numberDisplayLines++;
displayStrings[numberDisplayLines] += "\n";
display(((Document)node).getDocumentElement(), "",UpdtRecs);
break;
case Node.ELEMENT_NODE: {
if(node.getNodeName().equals("QueryParm")) {
for(int i =0 ; i< nodeList.getLength() ; i++)
Node nodeQry = nodeList.item(i);
NamedNodeMap nnp = nodeQry.getAttributes();
for(int j= 0 ; j < nnp.getLength() ; j++)
Attr atr = (Attr) nnp.item(j);
if(atr.getName().equalsIgnoreCase("value_"+(i+1)))
//System.out.println(atr.getName() +" : " + atr.getNodeValue() );
atr.setNodeValue(UpdtRecs.get(i).toString());
displayStrings[numberDisplayLines] = indent;
displayStrings[numberDisplayLines] += "<";
displayStrings[numberDisplayLines] += node.getNodeName();
int length = (node.getAttributes() != null) ?
node.getAttributes().getLength() : 0;
Attr attributes[] = new Attr[length];
for (int loopIndex = 0; loopIndex < length; loopIndex++) {
attributes[loopIndex] = (Attr)node.getAttributes().item(loopIndex);
for (int loopIndex = 0; loopIndex < attributes.length; loopIndex++) {
Attr attribute = attributes[loopIndex];
displayStrings[numberDisplayLines] += " ";
displayStrings[numberDisplayLines] += attribute.getNodeName();
displayStrings[numberDisplayLines] += "=\"";
displayStrings[numberDisplayLines] += attribute.getNodeValue();
displayStrings[numberDisplayLines] += "\"";
displayStrings[numberDisplayLines]+=">";
numberDisplayLines++;
NodeList childNodes = node.getChildNodes();
if (childNodes != null) {
length = childNodes.getLength();
indent += " ";
for (int loopIndex = 0; loopIndex < length; loopIndex++ ) {
display(childNodes.item(loopIndex), indent,UpdtRecs);
break;
case Node.CDATA_SECTION_NODE: {
displayStrings[numberDisplayLines] = "";
displayStrings[numberDisplayLines] += "<![CDATA[";
displayStrings[numberDisplayLines] += node.getNodeValue();
displayStrings[numberDisplayLines] += "]]>";
numberDisplayLines++;
break;
case Node.TEXT_NODE: {
displayStrings[numberDisplayLines] = "";
String newText = node.getNodeValue().trim();
if(newText.indexOf("\n") < 0 && newText.length() > 0) {
displayStrings[numberDisplayLines] += newText;
displayStrings[numberDisplayLines] += "\n";
numberDisplayLines++;
break;
case Node.PROCESSING_INSTRUCTION_NODE: {
displayStrings[numberDisplayLines] = "";
displayStrings[numberDisplayLines] += "<?";
displayStrings[numberDisplayLines] += node.getNodeName();
String text = node.getNodeValue();
if (text != null && text.length() > 0) {
displayStrings[numberDisplayLines] += text;
displayStrings[numberDisplayLines] += "?>";
displayStrings[numberDisplayLines] += "\n";
numberDisplayLines++;
break;
if (type == Node.ELEMENT_NODE) {
displayStrings[numberDisplayLines] = indent.substring(0,
indent.length() - 4);
displayStrings[numberDisplayLines] += "</";
displayStrings[numberDisplayLines] += node.getNodeName();
displayStrings[numberDisplayLines] += ">";
displayStrings[numberDisplayLines] += "\n";
numberDisplayLines++;
indent += " ";
public static void main(String args[])
Vector xmlValue = new Vector();
xmlValue.add(0,"Kashif");
xmlValue.add(1,"Qasim");
//displayDocument("NewMediation.xml",xmlValue);
<?xml version="1.0" encoding="UTF-8"?>
<Mediation>
<Task1>
<Source>
<SourceDriver>com.microsoft.jdbc.sqlserver.SQLServerDriver</SourceDriver>
<SourceConnection>jdbc:microsoft:sqlserver://10.2.1.58:1433;DatabaseName=MTCVB_HDS;</SourceConnection>
<SourceUser>sa</SourceUser>
<SourcePassword>sa</SourcePassword>
<Table>
<SourceTable>t_Agent</SourceTable>
<SourceQuery><![CDATA[SELECT SkillTargetID,PersonID,PeripheralID,EnterpriseName,PeripheralNumber,Deleted,TemporaryAgent,AgentStateTrace,ChangeStamp FROM t_Agent where SkillTargetID > {value_1} order by SkillTargetID]]>
</SourceQuery>
<SourceParm BusinessRule="" ColumnName="SKILLTARGETID" ColumnNumber="1" DataType="Numeric" DefaultValue="0" Format="mm/dd/yyyy xx:xx:xx XX">
</SourceParm>
<SourceParm BusinessRule="" ColumnName="PERSONID" ColumnNumber="2" DataType="String" DefaultValue="" Format="">
</SourceParm>
<SourceParm BusinessRule="" ColumnName="PERIPHERALID" ColumnNumber="3" DataType="String" DefaultValue="" Format="">
</SourceParm>
<SourceParm BusinessRule="" ColumnName="ENTERPRISENAME" ColumnNumber="4" DataType="String" DefaultValue="" Format="">
</SourceParm>
<SourceParm BusinessRule="" ColumnName="PERIPHERALNUMBER" ColumnNumber="5" DataType="String" DefaultValue="" Format="">
</SourceParm>
<SourceParm BusinessRule="" ColumnName="DELETED" ColumnNumber="6" DataType="String" DefaultValue="" Format="">
</SourceParm>
<SourceParm BusinessRule="" ColumnName="TEMPORARYAGENT" ColumnNumber="7" DataType="String" DefaultValue="" Format="">
</SourceParm>
<SourceParm BusinessRule="" ColumnName="AGENTSTATETRACE" ColumnNumber="8" DataType="String" DefaultValue="" Format="">
</SourceParm>
<SourceParm BusinessRule="" ColumnName="CHANGESTAMP" ColumnNumber="9" DataType="String" DefaultValue="" Format="">
</SourceParm>
<QueryParm FldName_1="SkillTargetID" FldType_1="Number" value_1="0">
</QueryParm>
</Table>
</Source>
</Task1>
</Mediation>
The QueryParm values are updated thru this code :)
Hope it helps u ...

How to trigger data recording to a text file for multiple channels for a certain voltage threshold?

I am working with 6 channels, from each of which I am obtaining voltage values ranging from 0.6-6 V. I am using the DAQ Assistant to acquire and write the data to a text file. However, I only want the data to be written to the text file when the difference in voltage (DeltaV) from one data point to another is greater than or equal to 0.04 V. I am acquiring the data at a sampling rate of 64 Hz. Any ideas on how to accomplish this? I have attached my current VI.
Attachments:
Data Triggering.vi ‏116 KB

Faizah wrote:
I am obtaining voltage values ranging from 0.6-6 V.
I only want the data to be written to the text file when the difference in voltage (DeltaV) from one data point to another is greater than or equal to 0.04 V.
Your code does not do what you describe above..
I just want to make sure I understand your request...
Let's say you have the following signal:
0.00
0.01
0.00
0.03
0.02
0.01
0.03
0.04
0.07
0.05
0.08
0.03 < delta greater than 0.04, so start recording
0.11
0.21
0.45
0.93
2.87
5.85
5.86 < delta less than 0.04, so stop recording
5.87
5.89
6.00 < delta greater than 0.04, so start recording
5.85
5.86 < delta less than 0.04, so stop recording
etc..
Is the above what you are describing?
Right now, your code does this:
0.00
0.01
0.00
0.03
0.02
0.01
0.03
0.04
0.07
0.05
0.08
0.03
0.11
0.21
0.45
0.93
2.87 < threshold greater than 1 so reset timer
5.85 < threshold greater than 1 so reset timer
5.86 < threshold greater than 1 so reset timer
5.87 < threshold greater than 1 so reset timer
5.89 < threshold greater than 1 so reset timer
6.00 < threshold greater than 1 so reset timer
5.85 < threshold greater than 1 so reset timer
5.86 < threshold greater than 1 so reset timer
4.35 < threshold greater than 1 so reset timer
2.21 < threshold greater than 1 so reset timer
1.09 < threshold greater than 1 so reset timer
0.98
However, you did not provide a set start time to the Elapse Time (I never use Express VI's so I'm not sure what will happen..) However, something does not appear correct with the logic. I'd have to check.

How do I create and display a text file?

Hello friends,
I am trying to create a simple unix like operating system with very basic functionality. I have a hard time trying to create a "mktext" file and actually display the contents of the text file with the "cat" command. For example:
// If I type
$$ mktext test.txt "We are one"
$$ Text file is created
// And if I type
$$ cat test.txt
// This line will appear
$$ "We are one" // Only the contents of the test.txt will display.
That is what I want to do, but currently stuck. I would appreciate any help and suggestions. Thanks...

This will do it:
import java.io.*;
import java.util.*;
public class Osys
     BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
public Osys()
     try
          while(true)
               System.out.print("$$ ");
               String s = keyboard.readLine();
               analize(s);
     catch(Exception e){}
private void analize(String s)
     if (s.trim().equals("")) return;
     StringTokenizer st = new StringTokenizer(s," ");
     if (!st.hasMoreTokens()) return;
     String s1 = st.nextToken();
     if (s1.equals("cat"))
          if (st.hasMoreTokens()) readIt(st.nextToken().trim());
          System.out.println("");
          return;
     if (s1.equals("mktext"))
          if (st.hasMoreTokens()) writeIt(st.nextToken().trim(),s);
          System.out.println("");
          return;
// write
private void writeIt(String file, String line)
     BufferedWriter writer;
     StringTokenizer st = new StringTokenizer(line,"\"");
     if (st.countTokens() != 2) return;
     st.nextToken();
     try
          writer = new BufferedWriter(new FileWriter(file));
             writer.write(st.nextToken());
          writer.close();
          System.out.println("$$ Text file is created");
     catch (IOException e)
           System.out.println(""+e);
// read
private void readIt(String file)
     BufferedReader reader = null;
     String         read   = null;
     try
         reader = new BufferedReader(new FileReader(file));
          while( (read = reader.readLine()) != null)
              System.out.println("$$ "+read);
          reader.close();
     catch (IOException e)
           System.out.println(""+e);
public static void main(String[] args)
     new Osys();
}Noah

How to read the content of a text file (by character)?

Guys,
Good day!
I'm back just need again your help. Is there anyone knows how to read the content of a text file not by line but by character.
Please help me. Thank you so much in advance.
Jojo

http://java.sun.com/javase/6/docs/api/index.html
package java.io
InputStream.read(): int
Reads the next byte of data from the input stream.
Implementation:
InputStreamReader
An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified charset. The charset that it uses may be specified by name or may be given explicitly, or the platform's default charset may be accepted.

How to get summary columns in delimited text file

How to get summary columns in delimited text file
I am trying to generate a delimited text file output with delimited_hdr = no.The report is a Group above report with summary columns at the bottom.In the text file the headers are not getting repeated & thats ok.The problem is the summary data is getting repeated for each row of data.Is there a way where i will get all the data & summary data will get displayed only once.I have to import the delimited text file in excel spreadsheet.

Sorry there were a typos :
When I used desformat=DELIMITEDDATA with desttype=FILE, I get error "unknown printer driver DELIMITEDDATA". When you look for help, DELIMITED is not even listed as one of the values for DESTFORMAT. But if you scroll down and look for DELIMITER it says , this works only in conjuction with DESTFORMAT=DELIMITED !!!!!!??!! This is in 9i.
Has this thing worked for anybody ? Can anyone please tell if they were able to suppress the sumary columns or the parent columns of a master-detail data for that matter ?

Writing new lines or carrige returns to a text file

I am try to use either FileOutputStream or FileWriter to write a String to a text file. Only any \n or \r characters within
the string open as square blocks in notepad when the string is writen, and all the text is on one line.
example code:
FileWriter writer = new FileWriter(name + ".txt", false);
String writeString = "Name: " + name + "\nSurname: " + surname;
writer.write(writeString, 0, writeString.length());
I am using Win98.

Notepad is a Windows-bigoted program and requires \r\n to denote the end of a line. (Or is it \n\r? Can't remember.) If you only give it \n (as in your example) it doesn't understand and displays those boxes. Other Windows text editors do a better job.
If you wrap your FileWriter in a PrintWriter, then you can just use its "println" method, which will take care of line-ending characters for you (it understands which OS you are running under and writes whatever combination of \n and \r is appropriate). Like this:FileWriter writer = new FileWriter(name + ".txt", false);
PrintWriter printer = new PrintWriter(writer);
String writeString = "Name: " + name;
writer.println(writeString);
writeString = "Surname: " + surname;
writer.println(writeString);

Soft return in tagged text file

Hi, anyone has example of using a End of line (soft return) in tagged text file?
i tried using <0x000A> but it does not work. Advice needed.
Tkz

So it does. It also drops it if you export in GB 18030. I would file a bug report:
https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform
Only workaround I can think of would be to enter some other unique character (maybe |?) and find/replace it in ID after bringing in the tagged text.
Ken
Hold on, I tried exporting tagged text and then bringing it back in. It's not dropping the forced line break. It's exporting it as a single Line Feed (hex 0a). And it interprets that as a forced line break when importing back in. My text editor ignores Line Feeds. I had to look at it in a hex editor to see the 0a.
I don't know if that helps any. However you're producing the tagged text, you would need to be able to make it enter a line feed without the carriage return.
Ken

How do i split content from the text file using tab and spaces...?

Hi.. Just want to ask help to all the experts. Im new in java and i have this problem on how to split the contents of the text file. ill show you the contents in order to let you see what i mean.
FileName: COL.txt
AcctNo AcctName Primary Secondary Status Opendate
121244 IPI Company Noel Jose Active 12/05/2007
As you can see the content i want to split it per column.. Please help me

Jose_Noel wrote:
Hi prometheuzz,
What do you mean by one thread...?You created two threads* with the same question in it. That way, people might end up giving you an answer that has already been posted in your other thread: thus wasting that person's time.
Just don't create multiple threads with the same question please.
* a thread is a post here at the forum

How to write a return in a text file.

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