Centered text in JTextArea (java)

how to center multiple line of text both vertically and horizontally in JTextArea ?

Try:
<html><center>text to center</center></html>
V.V.viravan's way is the way to do it. Yoiu can use HTML for all sorts of things:
<html><h1>text</h1></html> gives bigger text.
<html><font color="cc3333">Set hexdecimal font color</font></html>
You see the idea. :)

Similar Messages

Centering Text in JTextArea

How can I center texts in JTextArea?
"jta.setAlignemtX(CENTER)" +
"jta.setAlignemtY(CENTER)" dont work.
I need a little assistense.
Dirk

I apologize for the above wrong answer!
Why dont u use a JTextPane instead of JTextArea
JTextPane text=new JTextPane();
SimpleAttributeSet set=new SimpleAttributeSet();
StyledDocument doc=text.getStyledDocument();
StyleConstants.setAlignment(set,StyleConstants.ALIGN_CENTER);
text.setParagraphAttributes(set,true);

How to print diffrent color and diffrent size of text in JTextArea ?

Hello All,
i want to make JFrame which have JTextArea and i append text in
JTextArea in diffrent size and diffrent color and also with diffrent
fonts.
any body give me any example or help me ?
i m thanksfull.
Arif.

You can't have multiple text attributes in a JTextArea.
JTextArea manages a "text/plain" content type document that can't hold information about attributes ( color, font, size, etc.) for different portions of text.
You need a component that can manage styled documents. The most basic component that can do this is JEditorPane. It can manage the following content types :
"text/rtf" ==> via StyledDocument
"text/html" ==> via HTMLDocument
I've written for you an example of how a "Hello World" string could be colorized in a JEditorPane with "Hello" in red and "World" in blue.
import javax.swing.JEditorPane;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledEditorKit;
import javax.swing.text.StyledDocument;
import javax.swing.text.MutableAttributeSet;
import javax.swing.text.SimpleAttributeSet;
import java.awt.Color;
public class ColorizeTextTest{
     public static void main(String args[]){
          //build gui
          JFrame frame = new JFrame();
          JEditorPane editorPane = new JEditorPane();
          frame.getContentPane().add(editorPane);
          frame.pack();
          frame.setVisible(true);
          //create StyledEditorKit
          StyledEditorKit editorKit = new StyledEditorKit();
          //set this editorKit as the editor manager [JTextComponent] <-> [EditorKit] <-> [Document]
          editorPane.setEditorKit(editorKit);
          StyledDocument doc = (StyledDocument) editorPane.getDocument();
          //insert string "Hello World"
          //this text is going to be added to the StyledDocument with positions 0 to 10
          editorPane.setText("Hello World");
          //create and attribute set
          MutableAttributeSet atr = new SimpleAttributeSet();
          //set foreground color attribute to RED
          StyleConstants.setForeground(atr,Color.RED);
          //apply attribute to the word "Hello"
          int offset = 0; //we want to start applying this attribute at position 0
          int length = 5; //"Hello" string has a length of 5
          boolean replace = false; //should we override any other attribute not specified in "atr" : anwser "NO"
          doc.setCharacterAttributes(offset,length,atr,replace);
          //set foreground color attribute to BLUE
          StyleConstants.setForeground(atr,Color.BLUE);
          //apply attribute to the word "World"
          offset = 5; //we include the whitespace
          length = 6;
          doc.setCharacterAttributes(offset,length,atr,replace);
}

Center TEXT in JTextArea?

Is it possible to center text in a JTextArea?
I searched it but nothing on the web ... Is there another way to do this?
with JTextPane or JTextEditor?
I want just to center some text ....
Thanks

Do you want editable centered text or do you just want to display centered text and thought that JTextArea/JEditorPane/JTextPane was the only way to do it?
If you just need to display centered text, you can use JLabel with HTML tags:
Example:
String message = "<HTML><CENTER>Centered Text!!!<BR>With line breaks even!!!</CENTER><HTML>"
JLabel centered = new JLabel(message);

Clickable text in JTextArea?

Hi all,
I'm writing a program that populates a textarea with medical terms and such. And, the problem is I need to give an explanation to the more difficult words by allowing the user to click on the words and a popup window with the explanations will appear. I'm not familiar with the mouse clicks technology in Java, so please help if you can!
Also, any suggestions on how the data can be stored/retrieved when I'm using a MySQL database?
Many thanks!

For this you have to add mouse listener in a text area. So that on mouse click you can do something.
try following code, Run it and double click on some word.
import java.awt.BorderLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.*;
public class TextAreaDemo extends JPanel{
private JTextArea text = null, answer = null;
public TextAreaDemo(){
text=new JTextArea("Hi all,\nI'm writing a program that populates a textarea with medical terms and " +
"such. And, the problem is I need to give an explanation to the more difficult words " +
"by allowing the user to click on the words and a popup window with the explanations " +
"will appear. I'm not familiar with the mouse clicks technology in Java, so please " +
"help if you can!\n\nAlso, any suggestions on how the data can be stored/retrieved " +
"when I'm using a MySQL database?\n\nMany thanks!");
answer=new JTextArea(3, 20);
answer.setEditable(false);
setLayout(new BorderLayout());
add(new JScrollPane(text));
add(new JScrollPane(answer), BorderLayout.SOUTH);
text.addMouseListener(new MyMouseListener());
class MyMouseListener extends MouseAdapter{
public void mouseClicked(MouseEvent e){
if(e.getClickCount() == 2){
answer.setText("Do you want to know about:\n\t" + text.getSelectedText());
public static void main(String argv[]){
JFrame frame=new JFrame();
frame.setContentPane(new TextAreaDemo());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(400, 300);
frame.setVisible(true);
May help you.
Regards,

HTMLEditorKit Centering Text

Hello,
I am writing a basic html editor which uses a textPane and java's HTMLEditorKit. The program allows the html to be saved.
At the moment the text can only be written in a row by row form. And I would like to add the option of centering text, and images Which could be switch on and off, suchas in Microsoft's word.
Could anyone provide an example of how to achieve this, or over some guidance.
Thank you

Thanks,
I had a look at the site, though I could not find the answer, to how to use the java tools StyleSheet HTMLDocument and HTMLEditorKit kit. And allow the user to center text and images within a textpane, which would add the center tag to the HTMLDocument which contains the html template.
Could you possibly advice further?

How to read some records from a text file into java(not all records)

hello,
how to read text files into java. i need only few records from the text file not all records at a time.
If any one knows plz reply me
my id is [email protected]

this snipet reads a text file line by line from line 1 to 3
try {
              FileReader fr = new FileReader(directory);
              BufferedReader br = new BufferedReader(fr);
              int counter = 0;
              while ((dbconn = br.readLine()) != null) {
                  switch(counter){
                      case 0:
                        status = dbconn;
                      break;
                      case 1:
                        userName = dbconn;
                      break;
                      case 2:
                        apword = dbconn;
                      break;
                  counter++;
              br.close();
    }catch(IOException e){
    }

How to print a text file using Java

How can I print a text file using Java without converting the output to an image format. Is there anyway I can send the characters in the text file as it is for a print job? I did get a listing doing this ... but that converted the text to an image format before printing....
THanks,.

Hi I had to write a print api from scratch, and I did not convert the output to image. Go and read up on the following code. I know there is a Tutorial on Sun about the differant sections of the snippet.
private void printReport()
     Frame tempFrame = new Frame(getName());
     PrintJob printerJob = Toolkit.getDefaultToolkit().getPrintJob(tempFrame, "Liesltext", null);
     Graphics g = printerJob.getGraphics();
                //I wrote the method below for calculations
     printBasics(g);
     g.dispose();
     printerJob.end();
}This alone wont print it you have to do all the calculations in the printBasics method. And as I said I wrote this from scratch and all I did was research first the tutorial and the white papers
Ciao

How to get the source code of an HTML page in Text file Through java?

How to get the source code of an HTML page in Text file Through java?
I am coding an application.one module of that application is given below:
The first part of the application is to connect our application to the existing HTML form.
This module would make a connection with the HTML page. The HTML page contains the coding for the Form with various elements. The form may be a simple form with one or two fields or a complex one like the form for registering for a new Bank Account or new email account.
The module will first connect through the HTML page and will fetch the HTML code into a Text File so that the code can be further processed.
Could any body provide coding hint for that

You're welcome. How about awarding them duke stars?
edit: cheers!

How to replace a line ina text file using java?

Hi ALL,
Does anybody know how to replace a line in a text file uisng java.

use this thing:
http://doesthatevencompile.com/current-projects/code-sniplets/ASCIIFile.htm
open the file,
read its contents, replace the text you need in the contents, set the contents back into the file.
it takes care of the IO for you.

How to convert a HTML files into a text file using Java

Hi guys...!
I was wondering if there is a way to convert a HTML file into a text file using java programing language. Likewise I would also like to know if there is a way to convert any type of file (excel, power point, and word) into text using java.
By the way, I really appreciated the help that you guys gave me on my previous topic on how to extract tests from a pdf file.
Thank you....

HTML files are already text files. What do you mean you want to convert them?
I think if you search the web, you can find things for converting those MS Office files to text (or extracting text from them, as I assume you mean).

How to read a text file using Java

Guys,
Good day!
Please help me how to read a text file using Java and create/convert that text file into XML.
Thanks and God Bless.
Regards,
I-Talk

     public void fileRead(){
             File aFile =new File("myFile.txt");
         BufferedReader input = null;
         try {
           input = new BufferedReader( new FileReader(aFile) );
           String line = null;
           while (( line = input.readLine()) != null){
         catch (FileNotFoundException ex) {
           ex.printStackTrace();
         catch (IOException ex){
           ex.printStackTrace();
     }This code is to read a text file. But there is no such thing that will convert your text file to xml file. You have to have a defined XML format. Then you can read your data from text files and insert them inside your xml text. Or you may like to read xml tags from text files and insert your own data. The file format of .txt and .xml is far too different.
cheers
Mohammed Jubaer Arif.

Inputting Text in a java program

How do you input text in a java progerm? Im relearning java at the min. Havnt looked at it since studying it in uni(3 years ago). One problem I am having is that at uni we used a set of API's the uni had created. The problem with this is that I dont have it anymore. With this if I wanted to input some text I did sopmething similar to the following:
uuInOut.readLine();

Have you tried Google? with words like 'Java input"? (Top link gives you an answer :) )

Centered text in PDF

Hi
I am new to this Acrobat SDK forum. I am trying to write a PDF code, but I have problems centering text. Below is a short "program" that writes the text "Centered text" starting at position x=100, y=600. But how do I center this text at some position, say x=200, y=600 ? Can anyone help?
- gullipeX
%PDF-1.4
1 0 obj
   << /Type /Catalog
      /Outlines 2 0 R
      /Pages 3 0 R
   >>
endobj
2 0 obj
   << /Type /Outlines
      /Count 0
   >>
endobj
3 0 obj
   << /Type /Pages
      /Kids [ 4 0 R ]
      /Count 1
   >>
endobj
4 0 obj
   << /Type /Page
      /Parent 3 0 R
      /MediaBox [ 0 0 612 792 ]
      /Contents 5 0 R
      /Resources << /ProcSet 6 0 R
                  /Font << /F1 7 0 R >>
                  >>
   >>
endobj
5 0 obj
   << /Length 73 >>
stream
BT
   /F1 24 Tf
   100 600 Td
   ( Centered text ) Tj
ET
endstream
endobj
6 0 obj
   [ /PDF /Text ]
endobj
7 0 obj
   << /Type /Font
      /Subtype /Type1
      /Name /F1
      /BaseFont /Helvetica
      /Encoding /MacRomanEncoding
   >>
endobj
xref
0 8
0000000000 65535 f
0000000009 00000 n
0000000074 00000 n
0000000120 00000 n
0000000179 00000 n
0000000364 00000 n
0000000466 00000 n
0000000496 00000 n
trailer
   << /Size 8
      /Root 1 0 R
   >>
startxref
625
%%EOF

Hi, Irosenth and others again.
To try to solve my problem (because I do not know how to do this in PDF), I made a short PostScript program to check the length of the characters in Helvetiva 10 pt. A part of the program is shown below. If I have the length, I can calculate the centered position of the text in my C or Fortran program, that makes the PDF file. This investigation gave, for instance, the lengths for A, B and W as:
A: 6.66797
F: 6.10840
W: 9.43945
When I placed the EPS file into Adobe InDesign a bit different values came out:
A: 6.66959
F: 6.10963
W: 9.43942
... and still different in Adobe Photoshop:
A: 6.67081
F: 6.11075
W: 9.44115
I have the feeling that character lengths are given as integers in the font file (not as real numbers) and I actually have to multiply these lengths (for 10 pt. Helvetica) with some unknown value to find the "correct" lengths of the given characters. Does anyone know the actual length of the character A in Helvetica for instance?
PostScript program:
/Helvetica findfont
dup length dict begin
{1 index /FID ne {def} {pop pop} ifelse} forall
/Encoding ISOLatin1Encoding def
currentdict
end
/Helvetica-ANSI exch definefont pop
gsave
/str 20 string def
/Helvetica-ANSI findfont 10 scalefont setfont
(A ) 50 750 moveto show
(A) stringwidth pop str cvs 80 750 moveto show
(F ) 50 700 moveto show
(F) stringwidth pop str cvs 80 700 moveto show
(W ) 50 650 moveto show
(W) stringwidth pop str cvs 80 650 moveto show
grestore

Read Text file using Java Script

Hi,
I am trying to read a text file using Java Script within the webroot of MII as .HTML file. I have provided the path as below but where I am not able to open the file. Any clue to provide the relative path or any changes required on the below path ?
var FileOpener = new ActiveXObject("Scripting.FileSystemObject");
var FilePointer = FileOpener.OpenTextFile("E:\\usr\\sap\\MID\\J00\\j2ee\\cluster\\apps\\sap.com\\xapps~xmii~ear\\servlet_jsp\\XMII\\root\\CM\\OCTAL\\TestTV\\Test.txt", 1, true);
FileContents = FilePointer.ReadAll(); // we can use FilePointer.ReadAll() to read all the lines
The Error Log shows as :
Path not found
Regards,
Mohamed

Hi Mohamed,
I tried above code after importing JQuery Library through script Tag. It worked for me . Pls check.
Note : You can place Jquery1.xx.xx.js file in the same folder where you saved this IRPT/HTML file.
<HTML>
<HEAD>
<TITLE>Your Title Here</TITLE>
<SCRIPT type="text/javascript" src="jquery-1.9.1.js"></SCRIPT>
<script language="javascript">
function Read()
$.get( "http://ldcimfb.wdf.sap.corp:50100/XMII/CM/Regression_15.0/CrossTab.txt", function( data ) {
$(".result").html(data);
alert(data);
// The file content is available in this variable "data"
</script>
</HEAD>
<BODY onLoad="Read()">
</BODY>
</HTML>

Centered text in JTextArea (java)

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