highlighting text

[tussom]

Hello

I want to highlight a text in a text area that matches a pattern written in a text field

help me
i need it asap

[horace1]

Hello

I want to highlight a text in a text area that matches a pattern written in a text field

help me
i need it asap

you would
(1) read the pattern from the TextField using getText()
(2) read the text from the TextArea using getText()
(3) serarch for the start and end of the pattern using getIndex()
(4) if found use setSelectionSta rt() and setSelectionEnd () to highlight the text in the TextArea

[tussom]

you would
(1) read the pattern from the TextField using getText()
(2) read the text from the TextArea using getText()
(3) serarch for the start and end of the pattern using getIndex()
(4) if found use setSelectionSta rt() and setSelectionEnd () to highlight the text in the TextArea

can u please be more specific like how do i use the "setSelectionSt art"
thank u

[tussom]

you would
(1) read the pattern from the TextField using getText()
(2) read the text from the TextArea using getText()
(3) serarch for the start and end of the pattern using getIndex()
(4) if found use setSelectionSta rt() and setSelectionEnd () to highlight the text in the TextArea

the issue is about highlighting the text after finding it i don't know how to do that i need help quickly please.

[tussom]

you would
(1) read the pattern from the TextField using getText()
(2) read the text from the TextArea using getText()
(3) serarch for the start and end of the pattern using getIndex()
(4) if found use setSelectionSta rt() and setSelectionEnd () to highlight the text in the TextArea

I have done 1 and 2 but couldn't do 3 and 4 sorry for nagging but can anyone help me please

[horace1]

the issue is about highlighting the text after finding it i don't know how to do that i need help quickly please.

try this simple program

import java.awt.*;
import javax.swing.*;

public class TextAreaDemo extends JFrame {
   JTextArea resultArea = new JTextArea(10, 50);
        
    public TextAreaDemo() {
        resultArea.setText("abcdefghijklmnopqrst");
        resultArea.setSelectionStart(3);
        resultArea.setSelectionEnd(15);
        JScrollPane scrollingArea = new JScrollPane(resultArea);
        
        JPanel content = new JPanel();
        content.setLayout(new BorderLayout());
        content.add(scrollingArea, BorderLayout.CENTER);
        
        this.setContentPane(content);
        this.setTitle("TextAreaDemo");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.pack();
    }
    
    public static void main(String[] args) {
        JFrame win = new TextAreaDemo();
        win.setVisible(true);
    }
}

[tussom]

try this simple program

import java.awt.*;
import javax.swing.*;

public class TextAreaDemo extends JFrame {
   JTextArea resultArea = new JTextArea(10, 50);
        
    public TextAreaDemo() {
        resultArea.setText("abcdefghijklmnopqrst");
        resultArea.setSelectionStart(3);
        resultArea.setSelectionEnd(15);
        JScrollPane scrollingArea = new JScrollPane(resultArea);
        
        JPanel content = new JPanel();
        content.setLayout(new BorderLayout());
        content.add(scrollingArea, BorderLayout.CENTER);
        
        this.setContentPane(content);
        this.setTitle("TextAreaDemo");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.pack();
    }
    
    public static void main(String[] args) {
        JFrame win = new TextAreaDemo();
        win.setVisible(true);
    }
}

I got that part but the thing is that i want either to highlight or change font of any word that matches the pattern and they may be many so how do i get their index and highlight them accordingly??

[tussom]

I got that part but the thing is that i want either to highlight or change font of any word that matches the pattern and they may be many so how do i get their index and highlight them accordingly??

we have to use the method Highlight (...) but i don't know how ??
sorry again for nagging !

[r035198x]

we have to use the method Highlight (...) but i don't know how ??
sorry again for nagging !

Don't be sorry for nagging. That's how we all learn.

Have a look at this and try to do the hightlight. You can post if you get further problems.