Place a String in a JTextArea

Hello NG !!
I want to place a string in the center of my textarea, how can I do it ?
How can I change the text size and style ?
Thank you

afaik u cant place the text in the center of a textarea. u must use a JEditorPane to set text alignment for each line / multiple lines / all lines.
change the text size etc u can do via textare.setFont (Font)
see the docs for detailed informations about "Font".
for example:
textarea.setFont(new java.awt.Font("DialogInput", Font.BOLD, 18));
would set the font of textarea to "DialogInput" which is bold and has a size of 18.
elmar weber

Similar Messages

Problem: "???" in place of string result

Hi!
I would like to use Oracle STRUCTS but after .getObject the .getAttributes method gives me only three question marks: "???" in place of the real varchar/String.
BEA WebLogic's package examples.jdbc.oracle.extensions contains a simple example to demonstrate how to use Oracle STRUCTS. Everithing works well in this example but in place of string results there are triple question marks: "???".
Here is the OUTPUT of the STRUCTs client sample execution:
G:\bea\weblogic81\samples\server\examples\src\extensions> ant run.structs
Buildfile: build.xml
run.structs:
[java] Getting employees from database...
[java] Employee#: 100
[java] Name: Alfred Chuang
[java] Address: ???
[java] ???, ???
[java] Employee#: 101
[java] Name: Joe Walker
[java] Address: ???
[java] ???, ???
[java] Employee#: 102
[java] Name: Tina Potter
[java] Address: ???
[java] ???, ???
[java] Employee#: 103
[java] Name: Fred Couples
[java] Address: ???
[java] ???, ???
[java] Inserting employee to database...
[java] Getting employees from database...
[java] Employee#: 100
[java] Name: Alfred Chuang
[java] Address: ???
[java] ???, ???
[java] Employee#: 101
[java] Name: Joe Walker
[java] Address: ???
[java] ???, ???
[java] Employee#: 102
[java] Name: Tina Potter
[java] Address: ???
[java] ???, ???
[java] Employee#: 103
[java] Name: Fred Couples
[java] Address: ???
[java] ???, ???
[java] Employee#: 105
[java] Name: David David
[java] Address: ???
[java] ???, ???
BUILD SUCCESSFUL
Can anybody help me?
Thank you very much.

Sorry i made a mistake in my query
SELECT SUPPLIER_ID || '-' 
FROM SUPPLIER 
WHERE SUPPLIER_CODE IN (SELECT SUPPLIER_CODE 
FROM SUPPLIER_ACCOUNT 
WHERE SUPPLIER_CODE IN ('5771','5790','6436','8389','416') 
AND COUNTRY_ID = 205 
AND ACCOUNT_NUMBER='891274') 
AND COUNTRY_ID = 205; 
Usually I get the results as 
5678- 
5789- 
till dec 2006 But suddenly from Jan 2007 the order of the result is changed to 
5789- 
5678-. 
There is also no change in data. 
Can plz help me why the order changes? 
Thanks for advace help

How could i place scroll bars for my JTextArea!

hi,
I am using JTextArea. Now i want to place scroll bars to scroll when the text is more than the textarea..............
Help me...........
Regards........

Just to give you some more detail here is a simple example application:
import javax.swing.*;
public class Example extends JFrame{
     public Example(){
          build();
    public void build(){
          // The code that should be of interest to you.
           JScrollPane scroll = new JScrollPane();
          JTextArea t = new JTextArea();
          scroll.getViewport().add(t);
          this.getContentPane().add(scroll);
          this.setSize(200,200);
          this.setVisible(true);
    public static void main(String[] args) {
          new Example();
}good luck :)

Adding diffrent colored strings to a JTextArea

I writing a program that uses a messaging window like AIM, GAIM, Trilian etc that uses two JTextarea's to write and read the text. Thus far I cannot figure out how to add strings of diffrent colors to the JTextarea used for writing. The tutorials only explain how to set the font and color of typed text, not text i want to take form the write pane and add it to the read pane. Any ideas?

You might start with this:
http://java.sun.com/docs/books/tutorial/uiswing/components/generaltext.html
in the Java Tutorial
and possibly this:
http://javaalmanac.com/egs/javax.swing.text/pkg.html

Moving data string from a jtextarea into an array

i was looking for some advice. how would i be able to take chunks of text on a paragraph by paragraph basis and enter them into an array. which would result in paragraph1 in array 0, and so on. is this possible to do? i have never really used straing arrays before, and if anyone knows of any online tutorials it would be a great help
thank u

here you go, forgive the gui, very sloppy looking, press the Click me button to store the jtextarea data into the array and show output button to see what the value stored in the array is. there are 2 classes:
class MyMain {
      public static void main(String args[]){
          MyMain main = new MyMain();
          main.createIt();
      public void createIt() {
          MyFrame frame = new MyFrame();
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
class MyFrame extends JFrame {
      String[] myString = new String[1];
      JTextArea textArea = new JTextArea();
      JButton myButton = new JButton("Click me");
      JButton outButton = new JButton("Show output");
      MyFrame() {
          myButton.addActionListener(new ButtonListener());
          outButton.addActionListener(new OutListener());
          getContentPane().setLayout(new GridLayout(1,3));
          getContentPane().add(myButton);
          getContentPane().add(textArea);
          getContentPane().add(outButton);
          setVisible(true);
      class ButtonListener implements ActionListener{
          public void actionPerformed(ActionEvent e){
              myString[0] = textArea.getText();
      class OutListener implements ActionListener{
          public void actionPerformed(ActionEvent e) {
              System.out.println(myString[0]);
}

Converting CLLocation to a human-readable place name string

In a text-based application I want to enable a simple geotagging feature. Is there a way to convert a CLLocation latitude-longitude information into an actual place name, like "New York, NY", "Vancouver, B.C., Canada", "Birmingham, England" etc.? It doesn't need to be terribly precise, if it can recognize all towns/cities of more than 100-200K people I will be happy. On the same subject, since I'm new to the whole geotagging/GPS thing (I'm developing on a Touch and have never used a GPS device), what are some other developers doing with regards to presenting location information in a human-readable format? Just knowing the longitude/lattitude seems rather uninspiring to me.
Thanks,
DonutMan

You can use Google Maps Reverse Geocoding service.
http://code.google.com/apis/maps/documentation/services.html#ReverseGeocoding
It should be easy to wrap these js functions into Objective-C with -stringByEvaluatingJavaScriptFromString:
I know there is also a pure OBJC Google API framework but I don't know if it includes this.

Forcing decimal places on string

Hello,
I have a table where number are stored in varchar columns... below I show an example:
3000
4000
7200.45
5471.4
145.14
What I need is to get these values with 2 decimal places... as the result below:
3000.00
4000.00
7200.45
5471.40
145.14
How could I do this?
Thanks

Ranieri wrote:
When the column content is "0" the return will be ".00"... is there a way to force the return to be "0.00"?You want stripes? We got stripes.
You want plaids? We got plaids.
You want at least one digit before the decimal point? We got at least one digit beofre the decimal point.
TO_CHAR ( TO_NUMBER (txt)
     , '999990.99'          -- right-justifed
     )or
TO_CHAR ( TO_NUMBER (txt)
     , 'fm999999999999999999999999999999999990.00'          -- left-justifed
     )Just change '9.' to '0.'

Place a string before a data type when creating a column in a new table

Hi,
I am trying to create a table in Oracle 10g called Penalty with the following Primary Key; PenaltyType. I wish to insert the word 'penalty' and a single number into each column without creating a sequence, for example penalty1, penalty2, penalty4, penalty9 etc with the number input by the user and the database automatically inserting the word before it.
I am not sure about how I go about creating this as a constraint on the data type, could anyone possibly enlighten me?
I am using code which forms part of a larger SQL script to create a car hire database as detailed below;
CREATE TABLE Penalty
(PenaltyType ???????????????
CONSTRAINT pen_PenaltyType_pk PRIMARY KEY (PenaltyType),
MinDay NUMBER(3),
MaxDay NUMBER(3),
Cost NUMBER(2, 2));
Where the question marks would be replaced by the inserted word and single number to meet data type constraint:- "The word penalty followed by a single number (eg. Penalty1) "
Any help would be most appreciated, hope it's not too confusing, and sorry about formatting but the forum left justifies it all.
Thanks,
Jason

Something like this ?
SQL> desc penalty
Name                                                              Null?    Type
PENALTYTYPE                                                       NOT NULL VARCHAR2(20)
MINDAY                                                                     NUMBER(3)
MAXDAY                                                                     NUMBER(3)
COST                                                                       NUMBER(2,2)
SQL> create or replace trigger trig_penalty
2 before insert on penalty
3 for each row
4 begin
5     :new.penaltytype := 'Penalty' || trim(to_char(to_number(:new.penaltytype),'000000'));
6 exception
7     when others then
8       raise_application_error(-20001,'Wrong value');
9* end;
SQL> /
Trigger created.
SQL> insert into penalty(penaltytype) values(1);
1 row created.
SQL> select * from penalty;
PENALTYTYPE                   MINDAY          MAXDAY            COST
Penalty000001
SQL> insert into penalty(penaltytype) values('A');
insert into penalty(penaltytype) values('A')
ERROR at line 1:
ORA-20001: Wrong value
ORA-06512: at "TEST.TRIG_PENALTY", line 5
ORA-04088: error during execution of trigger 'TEST.TRIG_PENALTY'
SQL>BTW, you can use tags, [pre] before text, and [[i]pre] after text, to format it.

How to get InputStream from JTextArea.getText() string?

hello,
well the postname pretty much says it, i need to get an InputStream for the String of a JTextArea.
thing is, i want to save the string in a textfile, but the new line isnt recognized when i write it to the file.
FileWriter fw = new FileWriter ("text.txt");
fw.write(editField.getText()); // editField is my JTextArea instanceso i thought of doing smth like this
String lineSeparator = System.getProperty("line.separator");
// somehow getting the InputStream for my editField and save it in "is"
BufferedReader br = new BufferedReader(new InputStreamReader (is));
String line;
while ((line = br.readLine()) != null) {
fw.write(line);
fw.write(lineSeparator);
}

pSaiko wrote:
hello,
well the postname pretty much says it, i need to get an InputStream for the String of a JTextArea.
thing is, i want to save the string in a textfile, but the new line isnt recognized when i write it to the file.
FileWriter fw = new FileWriter ("text.txt");
fw.write(editField.getText()); // editField is my JTextArea instanceso i thought of doing smth like this
String lineSeparator = System.getProperty("line.separator");
// somehow getting the InputStream for my editField and save it in "is"
BufferedReader br = new BufferedReader(new InputStreamReader (is));
String line;
while ((line = br.readLine()) != null) {
fw.write(line);
fw.write(lineSeparator);
This is very simple, it isn't buffered, but it should work for you.
Sting s = editfield.getText();
for(int i=0; i<s.length();i++) fw.write((int)s.charAt(i));
fw.flush();
fw.close();

JTextArea will not display string with carriage return

Hello,
I am trying to display an XML file which i have converted into a string in a JTextArea to no avail. Any ideas how i can display the string in the JTextArea including the carriage return such that it still displays in the correct format?
Your pointers and suggestions will be much appreciated.

Antananarivo wrote:
Hello,
I am trying to display an XML file which i have converted into a string in a JTextArea to no avail. Any ideas how i can display the string in the JTextArea including the carriage return such that it still displays in the correct format?
Your pointers and suggestions will be much appreciated.You haven't done the conversion properly.
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.WindowConstants;
public class XMLTextArea {
    public static void main(String[] args) throws IOException {
        File f = new File("someFile.xml");
        BufferedReader br = new BufferedReader(new FileReader(f));
        StringBuilder sb = new StringBuilder();
        String nextLine = "";
        while((nextLine = br.readLine()) != null) {
            sb.append(nextLine).append("\n");
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.add(new JScrollPane(new JTextArea(sb.toString())));
        frame.setSize(400,300);
        frame.setVisible(true);
}

Removal of String from JTextArea

Does anyone know how to remove a string from a JTextArea. The folowing do not work
t1.remove(s1);
t1.delete(s1);
t1 being the text area and s1 the string

Hello,
If you want to "clear" the string, it's "setText("")".
If you want do remove part of the string, its a little bit more complex ...
String temp = getText();
remove the string from the temp String
setText(temp);
I hope this help

Question on JTextArea.append(String str)

Hi All,
When i provide JTextArea.append("FMTL") it is showing me on the JTextArea but when i give it as
String item="Viswanadh";
JTextArea.append(item).this particular statement is remaming blank on the TextArea.
Any idea why this is happening and is there any other method to be used instead of append.???
Thanks in advance..
regards,
Viswanadh

class OnApplyFormat implements ActionListener{
     public void actionPerformed(ActionEvent formatevent){
          JComboBox source = (JComboBox) formatevent.getSource();
               String item = source.getSelectedItem().toString();
                 System.out.println("Selected Format is:"+item);
                 try
                   if ( item!=null )
                          System.out.println("Format is:"+item);
                 infoarea.append("FMTL");
               infoarea.append(item);
                 infoarea.append("\r\n");
               infoarea.append("FMTU");
               infoarea.append("\r\n");
               infoarea.append("wait 5");
               infoarea.append("\r\n");
          else
               throw new Exception("FormatNotFoundException");
                      }catch(Exception e){
                      e.printStackTrace();
}That is my code and still i am facing the same FMTL is not getting appended with the item variable.
Help me in solving this issue.
Thanks in advance.
regards,
Viswanadh

Change font of a single word in JTextArea

Hallo,
I would like to change the font of a word in a string in a JTextArea.
I only found jtextArea.setFont().
thank you.

Which basically means you need to use JTextPane as JTextArea does not support this. Here is a simple working example:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=342068

Using JTextArea - How do I clear it?

Hi all.
I have written a GUI program which transfers data from a method to a JTextArea/JScrollPane upon a button ActionEvent.
When I press the "Next Record" button I want to be able to clear the previous details held in this JTextArea before I print the new ones in it. The Same for going backwards through an array. Does anybody know how to do this?
Currently I am using the append method to add the returned String to my JTextArea. I have also tried using a replaceRange(String, int, int) method to clear the box before printing new details, but this isn't working properly as each Record in the array contains a different String length, so I can not enter the int values for each specific object.
Below is the code for the application, and I've highlighted where I have used the methods to add a String to the JTextArea. I'm declaring the class for the action event within creating the actionListener, but can seperate it out if people need to see it more clearly.
RECORDING CLASS ----------
package RecordingManagerGUI;
public class Recording
private String title, artist, genre;
 public Recording (String theTitle, String theArtist, String theGenre)
 title = theTitle;
 artist = theArtist;
 genre = theGenre;
 public String getAlbum()
 return title;
 public String getArtist()
 return artist;
 public String getGenre()
 return genre;
 public String toString()
 String s = "Title: " + title + "\nArtist: " + artist + "\nGenre: " + genre + "\n\n";
 return s;
}MANAGER CLASS ---------------
package RecordingManagerGUI;
import java.util.*;
public class Manager
private Recording[] theRecordings;
private int numRecordings, maxRecordings, age;
private String managerName;
//Extending the Manager Class Instance Variables
private int current = 0;
private String record;
 public Manager (String theName, int theAge, int max)
 managerName = theName;
 age = theAge;
 maxRecordings = max;
 numRecordings = 0;
 theRecordings = new Recording[maxRecordings];
 public boolean addRecording (Recording newRecording)
 if (numRecordings == maxRecordings)
 System.out.println("The store is full");
 return false;
 else
 theRecordings[numRecordings] = newRecording;
 numRecordings++;
 return true;
 public int nextRecording ()
 if(current < numRecordings)
 current += 1;
 else
 record = "You have reached the end of the Records"; //initialise the string if no records
 return current;
 public int previousRecording()
 if(current > 1)
 current -= 1;
 else
 record = "You have reached the start of the Records"; //initialise the string if no records
 return current;
 public String displayCurrent()
 String displayRec = "";
 displayRec += theRecordings[current-1];
 return displayRec;
 public void displayDetails()
 System.out.println("Manager Name: " + managerName + ", " + age);
 //public void displayRecordings()
 // System.out.println("\nThe Recordings: ");
 // for (int i = 0; i < numRecordings; ++i)
 // System.out.println(theRecordings);
}RecordingManagerGUI CLASS ----------/*
*Need to add a Label which tells me when I have reached the end of the Records
package RecordingManagerGUI;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class RecordingManagerGUI extends JFrame {
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
JButton nextRecord;
JButton previousRecord;
JLabel recordLabel;
JTextArea displayRecord;
Manager theManager;
public RecordingManagerGUI() {
//Create and set up the window.
super("Recording Manager Application");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Recording FooFighters = new Recording("The Colour and the Shape", "Foo Fighters", "Rock");
Recording BlindMelon = new Recording("Blind Melon", "Blind Melon", "Alternative Rock");
Recording JoeSatriani = new Recording("The Extremist", "Joe Satriani", "Instrumental Rock");
Recording PercySledge = new Recording("When a Man Loves a Woman", "Percy Sledge", "Soul");
Recording JustinTimberlake = new Recording("Justified", "Justin Timberlake", "Pop");
Recording BeyonceKnowles = new Recording("Dangerously in Love", "Beyonce Knowles", "R'n'B");
Recording TupacShakur = new Recording("2Pacalypse Now", "Tupac Shakur", "Hip Hop");
theManager = new Manager("Cathy", 42, 7);
theManager.addRecording(FooFighters);
theManager.addRecording(BlindMelon);
theManager.addRecording(JoeSatriani);
theManager.addRecording(PercySledge);
theManager.addRecording(JustinTimberlake);
theManager.addRecording(BeyonceKnowles);
theManager.addRecording(TupacShakur);
displayRecord = new JTextArea(10, 30);
displayRecord.setEditable(false);
JScrollPane recordScroll = new JScrollPane(displayRecord);
recordLabel = new JLabel("Record Details");
nextRecord = new JButton("Next Record");
nextRecord.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e){theManager.nextRecording();displayRecord.append(theManager.displayCurrent());displayRecord.replaceRange(theManager.displayCurrent(), 0, 30);}}); //ADDING STRING TO JTEXTAREA
previousRecord = new JButton("Previous Record");
previousRecord.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e){theManager.previousRecording();displayRecord.replaceRange(theManager.displayCurrent(), 0, 30);}}); //ADDING STRING TO JTEXTAREA
getContentPane().setLayout(new FlowLayout());
getContentPane().add(recordLabel);
getContentPane().add(recordScroll);
getContentPane().add(nextRecord);
getContentPane().add(previousRecord);
//Display the window.
pack();
setVisible(true);
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
new RecordingManagerGUI();
}Would appreciate any help thanks. I'm not sure if I just need to create a new instance of the JTextArea upon the event which would hold the String information. If so I'm not really sure how to do this.

I don't know, the Swing experts are in the Swing forum. but setText() is defined in TextComponent, which a JTextArea is.

Placing string item as a list option

hi forum users i want to place the string item code which retrives server info as a list option but i do not know how to go abt it can anyone help thanks .
/*if (infopool.containsKey("ServerInfo")) {//server info
 res.removeCommand(Contents.ok);
 infopool.remove("ServerInfo");
 if (Datas.server_services.size() > 0) {
 res.append(new util.CustomStringItem("Server Services:", res.getWidth()));
 Vector serv = Datas.server_services;
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 String name = ((StringItem)serv.elementAt(k)).getText();
 res.append(new StringItem(lab+" ",name));
 else
 res.append(new StringItem("Server Info", " not available"));
 else{*/
thank you .

hi forum users i want to place the string item code which retrives server info as a list option but i do not know how to go abt it can anyone help thanks .
/*if (infopool.containsKey("ServerInfo")) {//server info
 res.removeCommand(Contents.ok);
 infopool.remove("ServerInfo");
 if (Datas.server_services.size() > 0) {
 res.append(new util.CustomStringItem("Server Services:", res.getWidth()));
 Vector serv = Datas.server_services;
 for (int k=0;k<serv.size();k++) {
 String lab = ((StringItem)serv.elementAt(k)).getLabel();
 String name = ((StringItem)serv.elementAt(k)).getText();
 res.append(new StringItem(lab+" ",name));
 else
 res.append(new StringItem("Server Info", " not available"));
 else{*/
thank you .

Place a String in a JTextArea

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