[SOLVED] JScrollPane - HELP!

[terox13]

I've spent hours surfing the web trying to get a simple JScrollPane to work.
I've tried many different things but basically this is what I have:

Code:

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

public class Main extends JFrame {

    JTextArea text;
    JScrollPane scroll;
    
    public Main() {
	super("");
	setLayout(null);
	setSize(200,200);
	
	text = new JTextArea();
	text.setBounds(20,20,100,100);
	
	scroll = new JScrollPane(text);
	
	add(text);
	add(scroll);
    }

    public static void main(String[] args) {
        JFrame frame = new Main();
        frame.setVisible(true);
    }

}

If I go past the limits of the JTextArea no scrollbar appears! Any help would be greatly appreciated.

[sukatoa]

What is the purpose of adding textArea to Scrollpane if you just add it directly to JFrame?

remove add(text);

[terox13]

I'm not sure I quite understand. If I remove add(text) then the JTextArea won't appear on the JFrame. I am really confused on how to use the scrollbar.

[sukatoa]

Ok, you have no containers that holds your component inside the JFrame....

add this to your code,

Code:

getContentPane().add(scroll);
	this.setDefaultCloseOperation(3);

Replacement for add(text) and add(scroll);

3 means Exit on close.....
getContentPane returns a container that will hold the ScrollPane that holds the textArea.

[terox13]

If I replace add(text) and add(scroll) with

Code:

getContentPane().add(scroll);
	this.setDefaultCloseOperation(3);

the JTextArea doesn't appear in the frame. I just want to have a JTextArea that I can put anywhere inside the frame with a scrollbar. I'm not very familiar with the concepts of constructing a GUI, such as the container. I would appreciate any help such as code on how to do this or a site where I can learn. I've been searching and searching and haven't found one that works for me. Thanks for you're help.

[sukatoa]

eg.

Code:

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

public class test extends JFrame {

    JTextArea text;
    JScrollPane scroll;
    
    public test() {
        super("TESTING");
        setSize(200,200);
	
        text = new JTextArea();
        scroll = new JScrollPane(text);
	
        getContentPane().add(scroll);
        setDefaultCloseOperation(3);
    }

    public static void main(String[] args) {
        new test().setVisible(true);
    }
}

[sukatoa]

Sun's Java Swing Tutorial.

[terox13]

Ohh thanks. I figured out what i did wrong.

Code:

text.setBounds(20,20,100,100);

I was setting the bounds of the JTextArea instead of the JScrollPanel, like this:

Code:

scroll.setBounds(20,20,100,100);

Thanks for your help!

[sukatoa]

No problem bro....

Just mark this thread as SOLVED...