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how can i goto a string in a textarea (urgent)

i have a textareahow would i search for a string like "<BODY>"and then go to that place in the textarea

[130 byte] By [aaa801a] at [2007-11-15]

«« need 'synchronized' on readExternal/writeExternal/readObject/writeObject?
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# 1

i realy need this in next 10mins help me!!!

aaa801a at 2007-7-12 >

top of java,Java Essentials,Java Programming...

# 2

JTextArea area = ...String findStr = "foo";String txt = area.getText();int index = txt.indexOf("foo");area.setCursorSpot(index);the last line is the right idea but the wrong method name. You can look it up in the documentation

tjacobs01a at 2007-7-12 >

# 3

You blew it ... took you a whole entire 12 minutes ;oP

abillconsla at 2007-7-12 >

# 4

please tell me what the method is i need this fast

aaa801a at 2007-7-12 >

# 5

> please tell me what the method is i need this fastthere's no point now, we're far too late, dammit

georgemca at 2007-7-12 >

# 6

> You blew it ... took you a whole entire 12 minutes ;oPcongratulations on your 4000th post, bill!

georgemca at 2007-7-12 >

# 7

you can still help me =p

aaa801a at 2007-7-12 >

# 8

im using a textarea not a jtextarea

aaa801a at 2007-7-12 >

# 9

> > You blew it ... took you a whole entire 12 minutes> ;oP> > congratulations on your 4000th post, bill!Hey thanks! ... blew right by me.

abillconsla at 2007-7-12 >

# 10

:| HELP ME

aaa801a at 2007-7-12 >

# 11

You might try something like this ... wrote this some time ago:

/**

arg is what you are looking for

private void parseText(String arg) throws IllegalArgumentException {

if (arg == null || arg.length() == 0 ) {

throw new IllegalArgumentException("Bad argument in parseText: "+arg);

}

intpointer = 0,

argLen= arg.length();

String data= getDisplayContent(); // method gets the content of your TextArea

if ( ipopdisp.getCaretPosition() < pointer ) { // ipopdisp is the TextArea Object

pointer = ipopdisp.getCaretPosition();

}

if ( data != null && data.length() > 0 && !data.equals(displayContent) ) {

displayContent = data; // defined at the class level

parseBeg = 0; // ditto

parseEnd = 0; // ditto

}

if ( isCaseSensitive ) { // at the class level

parseBeg = displayContent.indexOf(arg, parseEnd);

}

else {

parseBeg = displayContent.toUpperCase().indexOf(arg.toUpperCase(), parseEnd);

}

parseEnd = parseBeg+argLen;

if ( parseBeg == -1 ) {

parseEnd = 0;

if ( isCaseSensitive ) {

parseBeg = displayContent.indexOf(arg, parseEnd);

}

else {

parseBeg = displayContent.toUpperCase().indexOf(arg.toUpperCase(), parseEnd);

}

parseEnd = parseBeg+argLen;

if ( parseBeg == -1 ) {

parseBeg = 0;

parseEnd = 0;

}

char[] displayArray = displayContent.toCharArray();

for ( int a = 0; a < parseBeg; a++ ) {

String s = ""+displayArray[a];

if ( !s.equals(EOLS[2]) ) { // That's '\r'

pointer++;

}

ipopdisp.setCaretPosition(pointer);

ipopdisp.requestFocus();

}

caveat emptor

abillconsla at 2007-7-12 >

# 12

how can i add that to this

does it need more imports?

import java.awt.BorderLayout;

import java.awt.Graphics;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

import javax.swing.JApplet;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JFileChooser;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

import javax.swing.JPanel;

import javax.swing.JTextArea;

import java.awt.TextArea;

import java.util.*;

public class Editor extends JApplet implements ActionListener {

JPanel panel;

JFileChooser fc;

//hight width

TextArea field = new TextArea("test", 30, 50);

JComboBox combo;

private JPanel pnlNorth = new JPanel(); // North quadrant

private JPanel pnlSouth = new JPanel(); // South quadrant

private JPanel pnlEast = new JPanel(); // East quadrant

private JPanel pnlWest = new JPanel(); // West quadrant

private JPanel pnlCenter = new JPanel(); // Center quadrant

private JButton saveButton = new JButton("Save");

private JButton openButton = new JButton("Load");

private JButton btnEast = new JButton("Head");

private JButton btnWest = new JButton("Body");

private JButton btnCenter = new JButton("somthing");

private JMenuBar mb = new JMenuBar(); // Menubar

private JMenu mnuFile = new JMenu("File"); // File Entry on Menu bar

private JMenuItem mnuItemQuit = new JMenuItem("Quit"); // Quit sub item

private JMenu mnuHelp = new JMenu("Help"); // Help Menu entry

private JMenuItem mnuItemAbout = new JMenuItem("About"); // About Entry

public void actionPerformed(ActionEvent e) {

// Handle open button action.

if (e.getSource() == btnEast) {

String findStr = "<HEAD>";

String txt = field.getText();

int index = txt.indexOf("<HEAD>");

System.out.println(index);

}

else if (e.getSource() == openButton) {

int returnVal = fc.showOpenDialog(Editor.this);

if (returnVal == JFileChooser.APPROVE_OPTION) {

field.setText("");

File file = fc.getSelectedFile();

try {

BufferedReader in = new BufferedReader(new FileReader(file));

String data;

while ((data = in.readLine()) != null) {

field.append(data + '\n');

}

} catch (IOException _ex) {

System.out.println("Error " + _ex);

_ex.printStackTrace();

}

// This is where a real application would open the file.

// log.append("Opening: " + file.getName() + "." + newline);

}// else {

// log.append("Open command cancelled by user." + newline);

// }

// log.setCaretPosition(log.getDocument().getLength());

// Handle save button action.

}/*

* else if (e.getSource() == saveButton) { int returnVal = fc.showSaveDialog(Editor.this); if (returnVal ==

* JFileChooser.APPROVE_OPTION) { File file = fc.getSelectedFile(); //This is where a real application would

* save the file. // log.append("Saving: " + file.getName() + "." + newline); } else { //log.append("Save

* command cancelled by user." + newline); } //log.setCaretPosition(log.getDocument().getLength()); }

}

@Override

public void start() {

// TODO Auto-generated method stub

super.start();

}

@Override

public void stop() {

// TODO Auto-generated method stub

super.stop();

}

@Override

public void update(Graphics g) {

// TODO Auto-generated method stub

super.update(g);

}

public void init() {

fc = new JFileChooser();

fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);

panel = new JPanel();

this.setJMenuBar(mb);

mnuFile.add(mnuItemQuit);

mnuHelp.add(mnuItemAbout);

mb.add(mnuFile);

mb.add(mnuHelp);

pnlNorth.add(saveButton);

pnlSouth.add(openButton);

pnlEast.add(btnEast);

pnlWest.add(btnWest);

pnlCenter.add(btnCenter);

this.getContentPane().setLayout(new BorderLayout());

this.getContentPane().add(pnlNorth, BorderLayout.NORTH);

this.getContentPane().add(pnlSouth, BorderLayout.SOUTH);

this.getContentPane().add(pnlEast, BorderLayout.EAST);

this.getContentPane().add(pnlWest, BorderLayout.WEST);

openButton.addActionListener(this);// load

saveButton.addActionListener(this);// save

btnEast.addActionListener(this);//head

panel.add(field);

this.add(panel);

this.setSize(300, 300);

this.setVisible(true);

}

aaa801a at 2007-7-12 >

# 13

Take a look at this code

import java.awt.BorderLayout;

import java.awt.Graphics;

import java.awt.TextArea;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

import javax.swing.JApplet;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JFileChooser;

import javax.swing.JMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenuItem;

import javax.swing.JPanel;

public class Editor extends JApplet implements ActionListener {

JPanel panel;

JFileChooser fc;

// hight width

TextArea field = new TextArea("test", 30, 50);

JComboBox combo;

private JPanel pnlNorth = new JPanel(); // North quadrant

private JPanel pnlSouth = new JPanel(); // South quadrant

private JPanel pnlEast = new JPanel(); // East quadrant

private JPanel pnlWest = new JPanel(); // West quadrant

private JPanel pnlCenter = new JPanel(); // Center quadrant

private JButton saveButton = new JButton("Save");

private JButton openButton = new JButton("Load");

private JButton btnEast = new JButton("Head");

private JButton btnWest = new JButton("Body");

private JButton btnCenter = new JButton("somthing");

private JMenuBar mb = new JMenuBar(); // Menubar

private JMenu mnuFile = new JMenu("File"); // File Entry on Menu bar

private JMenuItem mnuItemQuit = new JMenuItem("Quit"); // Quit sub item

private JMenu mnuHelp = new JMenu("Help"); // Help Menu entry

private JMenuItem mnuItemAbout = new JMenuItem("About"); // About Entry

public void actionPerformed(ActionEvent e) {

// Handle open button action.

if (e.getSource() == btnEast) {

String findStr = "<HEAD>";

String txt = field.getText().toUpperCase();

int index = txt.indexOf(findStr);

if (index >= 0) {

field.select(index, index + findStr.length());// ////////CODE ADDED HERE

field.requestFocus();// //////////CODE ADDED HERE

}

System.out.println(index);

}

if (e.getSource() == btnWest) {

String findStr = "<BODY>";

String txt = field.getText().toUpperCase();

int index = txt.indexOf(findStr);

if (index >= 0) {

field.select(index, index + findStr.length());// ////////CODE ADDED HERE

field.requestFocus();// //////////CODE ADDED HERE

}

System.out.println(index);

} else if (e.getSource() == openButton) {

int returnVal = fc.showOpenDialog(Editor.this);

if (returnVal == JFileChooser.APPROVE_OPTION) {

field.setText("");

File file = fc.getSelectedFile();

try {

BufferedReader in = new BufferedReader(new FileReader(file));

String data;

while ((data = in.readLine()) != null) {

field.append(data + '\n');

}

} catch (IOException _ex) {

System.out.println("Error " + _ex);

_ex.printStackTrace();

}

// This is where a real application would open the file.

// log.append("Opening: " + file.getName() + "." + newline);

}// else {

// log.append("Open command cancelled by user." + newline);

// }

// log.setCaretPosition(log.getDocument().getLength());

// Handle save button action.

}/*

* else if (e.getSource() == saveButton) { int returnVal = fc.showSaveDialog(Editor.this); if (returnVal ==

* JFileChooser.APPROVE_OPTION) { File file = fc.getSelectedFile(); //This is where a real application would

* save the file. // log.append("Saving: " + file.getName() + "." + newline); } else { //log.append("Save

* command cancelled by user." + newline); } //log.setCaretPosition(log.getDocument().getLength()); }

}

@Override

public void start() {

// TODO Auto-generated method stub

super.start();

}

@Override

public void stop() {

// TODO Auto-generated method stub

super.stop();

}

@Override

public void update(Graphics g) {

// TODO Auto-generated method stub

super.update(g);

}

public void init() {

fc = new JFileChooser();

fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);

panel = new JPanel();

this.setJMenuBar(mb);

mnuFile.add(mnuItemQuit);

mnuHelp.add(mnuItemAbout);

mb.add(mnuFile);

mb.add(mnuHelp);

pnlNorth.add(saveButton);

pnlSouth.add(openButton);

pnlEast.add(btnEast);

pnlWest.add(btnWest);

pnlCenter.add(btnCenter);

this.getContentPane().setLayout(new BorderLayout());

this.getContentPane().add(pnlNorth, BorderLayout.NORTH);

this.getContentPane().add(pnlSouth, BorderLayout.SOUTH);

this.getContentPane().add(pnlEast, BorderLayout.EAST);

this.getContentPane().add(pnlWest, BorderLayout.WEST);

openButton.addActionListener(this);// load

saveButton.addActionListener(this);// save

btnEast.addActionListener(this);// head

btnWest.addActionListener(this);//body ////////////////CODE ADDED HERE

panel.add(field);

this.add(panel);

this.setSize(300, 300);

this.setVisible(true);

}

java_2006a at 2007-7-12 >

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