How to creat a text file

hello everybody
I need your help guys in some java issue
"surprise"
how can I create a text file in java
I mean I wanna check if the file is there and if its not I create it
thanks

> mkdirs() only creates the parent directory structure
(may be needed as well).
Which is what I assumed at first, based on his report of an error message. However, now I'm not so sure, based on the OP's lack of detail. I can't tell if s/he's just not handling the exception (throws or try/catch), or if s/he is actually getting a "The system cannot find the path specified" message when attempting to create a file for which the appropriate directory does not exist (as is possible with createNewFile()).
It remains a mystery. :o)
~

Similar Messages

How to create a text file or XML file and add content through code into it...

Hi Everyone,
How to create a text file and add content through the code to the text file eform javascript ......orelse can we create a text file in life cycle designer...
Else say how to create a new XML file through the code and how some content like Example "Hello World".

You can create a text file as a file attachment (data object) using the doc.createDataObject and doc.setDataObjectContents:
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.450.html
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.528.html
You can then export the file with the doc.exportDataObject method:
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.463.html
This won't work with Reader if it hasn't been given the file attachment usage right with LiveCycle Reader Extensions.

HOw to create a text file in the given path and delete it after the use?

Hi all,
I am trying to create a text file at the given path and delete the created file after the use.
I am using following code.:
import java.io.*;
// write binary data as characters
public class RanIO {
                                        public static void main(String f[])
                                                  // First illustrate append
                                                  String lineSep = "\n";
                                                  try {
                                                                 File temp= new File("C:/Ash","cute.txt");
                                                  boolean ch=temp.createNewFile();
                                                  if(ch)
                                                       System.out.println("file created");
                                                  else
                                                  System.out.println("file Not created");
                                                  //writing to file
                                             /*     PrintWriter p = new PrintWriter(new BufferedWriter(new FileWriter("cute.txt",true)));
                                                  p.print("Emp NO");
                                                  p.close();*/
                                                            // Open fileWriter in append mode
                                                                           FileWriter fos = new FileWriter(temp, true);
                                                                           BufferedWriter bw = new BufferedWriter(fos);
                                                                           PrintWriter pw = new PrintWriter(fos);
                                                                           double d=550;
                                                                      // lineSep = System.getProperty("line.separator");
                                                                      pw.print("Hello");
                                                                      //pw.print( lineSep );
                                                                      pw.print( d );
                                                                      pw.close();
                              boolean det=temp.delete();
                                             if(det)
                                                  System.out.println("File deleted");
                                             else
                                                  System.out.println("File not deleted");
                                             } catch (IOException ioe)
                                                            System.out.println( "Append IO error:" + ioe );
My problem:
1)
I am not able to write to the file. I want to know, where i am going wrong.
It is giving error message like
"Canot resolve Symbol: temp,"
But, FileWriter Constructor should accept a File type parameter.
here temp is a file parameter.
If i am not using file=new file();
i can't delete the file after the use. i.e if i use
PrintWriter p = new PrintWriter(new BufferedWriter(new FileWriter("cute.txt",true)));
how can i delete cute.txt after the use?
2)
I am not able to write to the text file. file is created but, a blank file.
"Hello" is not written into the text file.
can anyone help me in this regard
Thanks in advance
Ashvini

Thank you Ram,
But, i want to create a text file in Append mode.
for that i used
FileWriter fos = new FileWriter(temp,true); But, it is not accepting FileWriter constructor in
this format. if i use
FileWriter fos = new
FileWriter("c:/ash/cute.txt",true); it works fine. !!!!!Here's the javadoc
public FileWriter(File file,
boolean append)
throws IOExceptionConstructs a FileWriter object given a File object. If the second argument is true, then bytes will be written to the end of the file rather than the beginning.
Parameters:
file - a File object to write to
append - if true, then bytes will be written to the end of the file rather than the beginning
Throws:
IOException - if the file exists but is a directory rather than a regular file, does not exist but cannot be created, or cannot be opened for any other reason
Since:
1.4
Are you using jdk.13 or lower ?
>
ONe more doubt, Does flush method deletes a file?
if not, then i need to use
File temp=new File("c:/ash/cute.txt");
FileWriter fos = new FileWriter(temp,true); //which
is again a problem
if(temp.delete())
out.println("File is deleted");
}I don't know whether i am taking it wrong ! or
anything wrong with my coding ! but, after creating
and writing data into a text file. I must delete it
as it contains confidential informations.
Regards,
Thanks.'flush' writes to a file immediately. Else you should explicitly call 'flush' to write contents from buffer to underlying source.
javadoc again
PrintWriter
public PrintWriter(Writer out,
boolean autoFlush)Create a new PrintWriter.
Parameters:
out - A character-output stream
autoFlush - A boolean; if true, the println, printf, or format methods will flush the output buffer
cheers,
ram.
Question; What do you gain by opening a file, writing to it and deleting it in the same program ?

How to create a text file & write contents into it?

Hi All,
Im using Acrobat 7.0 Professional.Im writing a javascript to write a content to a text file.How can i do this using acrobat scripting objects.
Any code snippets?
Thanks
myriaz

You can create a text file as a file attachment (data object) using the doc.createDataObject and doc.setDataObjectContents:
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.450.html
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.528.html
You can then export the file with the doc.exportDataObject method:
http://livedocs.adobe.com/acrobat_sdk/9.1/Acrobat9_1_HTMLHelp/JS_API_AcroJS.88.463.html
This won't work with Reader if it hasn't been given the file attachment usage right with LiveCycle Reader Extensions.

How to create a text file from jsp?

In JSP, what is the command to create a text file and dump a variable in it?

You mean StringBuffer?

How to Create a text file through Portal

Hi,
Is there any way to create a text file(e.g Excel file) through Portal? Thanks.
Sumita

I have a way to do this in VBScript, I don't know if it will work with the portal but the steps are simple. If you can create a text file within portal, try to create it as an html table:
<table>
<tr>
<td>Column Header 1</td>
<td>Column Header 2</td>
</tr>
<tr>
<td>Value 1</td>
<td>Value 2</td>
</tr>
<tr>
</tr>
</table>
When you create this file save it with XLS extension instead of TXT, create a link to it and voila! it will load Excel and you will have your data well formatted. I found this method rather better than save the file as a CSV. You can also include any html attribute inside the <TD> or <TR> like background color and font type, Excel will keep those attributes.
I hope this will help
Arturo

How to create a text file with data.

Hi,
I am writing java code for testing an application, some times test can failed in some cases, I want to display an error message in text file. To that I written the code as like,
BufferedWriter bout;
bout =new BufferedWriter(new FileWriter("test.txt"));
String str=Your input data is not match with pattern
bout.write(str);but here it is creating a text file test without any data in it.
Can any body help that to execute the program properly
Regards
Buntty

sabre150 wrote:
JoachimSauer wrote:
You didn't close your BufferedWriter. Since it's buffered it probably didn't write anything to the underlying file.
Generally you must close every Writer/OutputStream that you no longer use or it won't be written reliably.It's not quite as simple as that. If you have a chain of Writers / OutputStreams then you only have to close() the outer most one since each is responsible for closing any Writer/OutputStream that it wraps. If you do decide to close them individually (a bad idea but people do do it) then you MUST close them starting from the outer most one and working to the most inner one or you will not guarantee to flush any buffered content.Of course. I might have used a misleading phrasing here. What I meant is "Every time you are done with a Writer, you must close it" and not "You must close *every* Writer that you used". Thanks for the clarification.

How to create empty text file on target system for empty source text file

Hi All,
I have an issue in handling empty file in the Text (FCC) to Text (FCC) file scenario. Interface picks text file and delivers on target system as text file. I have used FCC in both sender and receiver CCs.
Interface is working fine if the source file is not empty. If the source text file is empty (zero Bytes), interface has to delivery an empty text file on target system. I have setup empty file handling options correctly on both CCs.
But when I tried with an empty file I am getting the error message 'Parsing an empty source. Root element expected!'.
Could you please suggest me what I need to do to create an empty text file on target system from empty source text file?
Thanks in Advance....
Regards
Sreeni

>
Sreenivasulu Reddy jonnavarapu wrote:
> Hi All,
>
> I have an issue in handling empty file in the Text (FCC) to Text (FCC) file scenario. Interface picks text file and delivers on target system as text file. I have used FCC in both sender and receiver CCs.
> Interface is working fine if the source file is not empty. If the source text file is empty (zero Bytes), interface has to delivery an empty text file on target system. I have setup empty file handling options correctly on both CCs.
>
> But when I tried with an empty file I am getting the error message 'Parsing an empty source. Root element expected!'.
>
> Could you please suggest me what I need to do to create an empty text file on target system from empty source text file?
>
> Thanks in Advance....
>
> Regards
> Sreeni
the problem is that when there is an empty file there is no XML for parsing available. Hence in case you are using a mapping it will fail.
What ideally you should do is to have a module that will check if the file is empty and if so write out an XML as you want with no values in the content/fields.
Or the next choice would be to have a java mapping to handle this requirement. I guess that on an empty file the java mapping will go to an exception which you can handle to write out your logic/processing

I was given an assingment, but have no idea where to begin. The assingment is to create a text file using notepad with all of my digital inputs and some how make those imputs show up on my digital indicators on my control pannel

I was given an assingment, but have no idea where to begin. The assingment is to create a text file using notepad with all of my digital inputs and some how make those imputs show up on my digital indicators on my control pannel.
When it was explained to me it didn't sound to hard of a task, I have no LabVIEW experience and the tutortial sucks.

StevenD: FYI, I did NOT give you the one star rating. I would never do that!
StevenD wrote:
Ow. Someone is grumpy today.
Well, this is an assignment, so it is probably homework.
Why else would anyone give HIM such an assigment, after all he has no LabVIEW experience and the tutorials are too hard for him?
This would make no sense unless all of it was just covered in class!
This is not a free homework service with instant gratification.
OK! Let's do it step by step. I assume you already have a VI with the digital indicators.
"...but have no idea where to begin".
open notepad.
decide on a format, possibly one line per indicator.
type the document.
close notepad.
open LabVIEW.
Open the existing VI with all the indicators.
(are you still following?)
look at the diagram.
Who made the program?
Does the code make sense so far?
Is it a statemachine or just a bunch of crisscrossed wires?
Where do you want to add the file read?
How should the file be read (after pressing a read button, at the start of the program ,etc.)
See how far you get!
Message Edited by altenbach on 06-24-2008 11:23 AM
LabVIEW Champion . Do more with less code and in less time .

How can I add a "Create New Text File" contextual menu?

Hi,
I'd like to add a "Create New Text File" contextual item. I found the "new text file" action in Automator, but I don't really know where to go from there... I want it to work on the desktop and in finder...
Thanks

See:
Mac OS X Automation,
Automated Workflow Tips,
Introduction to Automator tutorial, and
a four-parter on Automation in Snow Leopard by Sal Saghoian:
Snow Leopard Services,
Services for iPhoto,
Safari and WebKit integration, and
Installing and using services.
Finally,
Developing AppleScript Applications and
Apple's Automator Developer Documentation

How can FMS create a text file and write data into it in the Server application folders?

Recently, I writed a programe about creating a text file and writing data into it in the server application folder. My code is as following:
           var fileObj = new File("/MyApp/test.txt");
           if( fileObj != null)
                  if(fileObj.open( "text", "append"))
                        fileObj.write( "                                                      ———— Chat Info Backup ————\r\n" );
                        fileObj.close( );
                        trace("Chat info backup document :" + fileObj.name + " has been created successfully!");
But when I run it, FMS throw the error as following: File operation open failed ; TypeError: fileObj has no properties.
Can you help me ? Thanks in advance.
Supplement: The text file named test.txt doesn't exist before create the fileObj, an instance of File Class.

Is MyApp the name of the application directory, or is it a child of the application directory? If myApp is the app name, just use test.txt as the path flag in the file constructor.

How to Create a PSD file in C#

How to Create a PSD file in C#

Converting an image file to .psd is easy in Aperture - just export the image version with one of the export presets "PSD - Original size" or "PSD - Half size".
But I suspect, that will not solve your problem, since you are trying to create a watermark in Aperture and probably want to create a transparent background for the watermark, to give it an arbitrary shape. That cannot be done in Aperture. Aperture does not support compositing and layers. If you want to create an image of an arbitrary shape with a transparent background you need to use a program that supports compositing. Since you do not have Photoshop, you could try the free GIMP instead (afaik, there is no Lion version of GIMP; the most recent version is Mt. Lion only; you could try if the Snow Leopard version works on your system).
Any program that you own, that lets you write or draw on a transparent background will be fine. The Watermark file does not necessarily need to be a psd-file. A png will also work. You can also use Preview to convert between image formats or to annotate an image with text.
Regards
Léonie

How to send a text file to a printer?

Hi, I'm in dark on how to send a text file to a printer through Java Stored Procedure.
Here are what I tried so far (OS: win 2000, Oracle: 817 or 9i2):
1, Enable DOS command in Java Stored Proc. and try to send PRINT command there:
public static String Run(String Command){
try{
Runtime.getRuntime().exec(Command);
System.out.println("Command: " + Command);
return("0");
catch (Exception e){
System.out.println("Error running command: " + Command +
"\n" + e.getMessage());
return(e.getMessage());
public static void main(String args[]){
if (args.length == 1)
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PL/SQL wrapper:
CREATE OR REPLACE FUNCTION OSCommand_Run(p1 IN VARCHAR2) RETURN VARCHAR2 AUTHID CURRENT_USER AS LANGUAGE JAVA NAME 'OSCommand.Run(java.lang.String) return java.lang.String';
SQL command:
//print /D:\\machine\printer test.txt
I loaded the Java Stored Procedure into SYSDBS account, it failed silently, even though piece of code works fine in external JVM.
2, Use filePrinter:
public static String print(String printString) {
try{
String printerUNC = "\\\\machine\\printer";
FileWriter fw = new FileWriter(printerUNC);
PrintWriter pw = new PrintWriter(fw);
pw.println(printString);
fw.close();
return "OK";
}catch(Exception e){
e.printStackTrace();
return "Exception: " + e.getMessage();
public static void main(String[] args) {
try{
String printerUNC = "\\\\machine\\printer";
String printString = "Hello World";
FileWriter fw = new FileWriter(printerUNC);
PrintWriter pw = new PrintWriter(fw);
pw.println(printString);
fw.close();
}catch(Exception e){e.printStackTrace();}
I loaded it into SYSDBS too, and tried with this:
SQL> select MY_PRINT.PRINT('HELLO from Oracle') from dual;
MY_PRINT.PRINT('HELLOFROMORACLE')
Exception: No such file or directory
SQL> show user
USER is "SYS"
It works in external JVM too.
What's wrong with this?
Thanks for any help in advance,
Charles

Avi:
Thanks for your response!
I put the java code in SYS, 'cause I assume that account has max privilege. If the test is successful, I will move that to some user schema and then to deal with those privilege settings... But I'm unlucky.
I checked Ask Tom, this is what I got from http://asktom.oracle.com/pls/ask/f?p=4950:8:1619723::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:38012348052,%7Bprinter%7D:
... Print file from PL/SQL ...
If you are using Oracle8i, release 8.1 -- much can be done with Java. java
would be able to print directly from the server.
Looks like using Java to print out file is better than PL/SQL. But there's no more hint there! And, no new question can be asked there today either...
I'm wondering whether we can create a socket to a printer and send the characters there directly... Anyone has experience on this?
Thanks for all the help in advance,
Charles

How to create new XML file using retreived XML content by using SAX API?

hi all,
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import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
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import org.xml.sax.InputSource;
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        super.characters(text, start, length);
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char[] xmp_arr = xmp_str.toCharArray();
Sax.characters(xmp_arr, 0, xmp_arr.length);
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Sax.endDocument();
Sax.endElement("", "basic-metadata", "basic-metadata");* In CreateXMLFile.java
class, I have retreived the xml content in the meta_data object, after that i have converted into character array and this will be sends to SAX
* In this case , the XML file created successfully but the retreived XML content added as an text in between basic-metadata Element, that is, retreived XML content
is not an XML type text, it just an Normal text Why that ?
* Please help me what is the problem in my code?
Cheers,
JavaImran

Sax.startDocument();
Sax.startValidation();
Sax.startElement("", "pdf", "pdf", new AttributesImpl());
Sax.startElement("", "basic-metadata", "basic-metadata", new AttributesImpl());
String xmp_str = new String(meta_data.getByteArray(),"UTF8");
char[] xmp_arr = xmp_str.toCharArray();
Sax.characters(xmp_arr, 0, xmp_arr.length);
</code><code>Sax.endElement("", "basic-metadata", "basic-metadata");</code>
<code class="jive-code jive-java">Sax.endElement("", "pdf", "pdf");
Sax.endValidation();
Sax.endDocument();
* I HAVE CHANGED MY AS PER YOUR SUGGESTION, NOW SAME RESULT HAS COMING.
* I AM NOT ABLE TO GET THE EXACT OUTPUT.,WHY THAT ?
Thanks,
JavaImran{code}

How to create a pdf file from multiple images ?

Dear All,
I want to create a SINGLE page pdf file from two or more page size images that are combined to make a single page pdf. Again, this question is on pdfs that are made out of several, atleast two color images and a black-and-white mask for one of them.
I have such pdf files from an unknown source (the producer is edited out) whereby there are three tiff images, obtained using the well known pdfimages extractor.
When I want to make a pdf out of tiff or png or other image formats, I right click and tell Adobe Acrobat to make a pdf.
However, I dont know how I can give a command to select say, three tif images and specify which is the mask for which and then join them in a way that I get the pdf from the composite of the two color images and a mask for one of them.
Please help me out.
I am a little familiar with the pdf structure skeleton and when necessary, fixed xref tables in one of my favorite editors. A few years ago, I also wrote a bunch of javascripts to make some annotations and needed some automation and used some itext type libraries. However, I need your help in this problem as I am now rusty and forgot some of what I studied to solve my earlier problems. This is a new problem for me. Gentle hints from you would be very nice to help me in this problem. Please specify if necessary what manual and pages to read. in the pdfspec.
Best Regards
Disabled Veteran [physically handicapped]

Hello Again.
On Fri, May 11, 2012 at 12:20 PM, lrosenth <[email protected]> wrote:
>
> Re: How to create a pdf file from multiple images ?
>
> created by lrosenth in PDF Language and Specifications - View the full
> discussion
> ________________________________
>
> No clue who Irving is…
>
I was hoping to have your first name so its easy for me to address you.
> I have no clue what OS platform, programming language, etc. you use so
> can’t really narrow things down.
I would gladly mention that I am working on windows platform, preferably XP.
I can also work on linux for free products that come with it.
> Also, as this is an Adobe forum, we only
> recommend Adobe products – so there may be other options that even my list
> wouldn’t include.
But adding other products, for the help of an adobe products user,
even if it outside adobe, shall add greater prestige to your company
and give impression of user-centeredness.
> If you read ISO 32000-1:2008 (aka the PDF standard), you will find the
> information about Images and Image Masks well described. I didn’t think I
> needed to repeat any of that information.
Well, just add the few pdf stanzas since you are proficient on it and
I am presently a little rusty as I mentioned. Just asking a little
extra yard, not even to go an extra mile.
> And, if you read that same document, you will see that there is NO SUCH
> THING as a “text only PDF”. All PDF documents are structured binary files.
Well, ascii format or uncompressed format that is human readable. I
know its a binary file, but human readable ascii version of it.
I hope you can give me some stanza and various other approaches
possible so I can select or combine things for myself. I see only a
miniscule number of posts claiming to have written masks in this forum
and then with no details.
Regards
Roger
Message was edited by: dying veteran
because the adobe posting system went crazy and truncated all except the first line ... dunno why

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