To create a text area using swing

In the attached file i have given the code to create a text area when a buton is clicked along with a scrollbar .in the output i can see the button but it does not work so i cannot see the text area over which it will be written "button clicked. I have used the concept of interface and inner class.please see the code and help me out.

I cant view .java files on the phone but i suspect you haven't used a validate(); call.. This kind of operation is not thread safe so I'm not surprised it doesent work. But here's a walkaround: use textarea.setPrefferedSize(new Dimension(1,1)); for the not viewable text area and then call the same method with the parameters 450,450(viewable text area), for example.. To add a scrollbar you just do add(new JScrollPane(textArea));

thank you cens

it is still not working please help me.

it is still not working

try this

Code:

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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JScrollPane.*;
import java.awt.event.ActionListener.*;
import javax.swing.JTextArea.*;
import javax.swing.*;

public class TextArea implements ActionListener
{
       
        JTextArea text;
        public static void main(String [] args)
        {
                TextArea gui=new TextArea();
                gui.go();
        }
        public void go(){
                JFrame frame;
                frame = new JFrame();
                JPanel panel = new JPanel();
                JButton button = new JButton("JUST CLICK IT");
                button.addActionListener(this);
               
                text=new JTextArea();
                text.setLineWrap(true);
                text.setPrefferedSize(new Dimension(1,1));
                //pay attention here.. Is panel where "text" should be added?
                panel.add(new JScrollPane(text));
               
                frame.getContentPane().add(BorderLayout.CENTER, panel);
                frame.getContentPane().add(BorderLayout.SOUTH, button);
               
               
                JScrollPane scroller=new  JScrollPane();
                panel.add(scroller);
                scroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
                scroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
               
               
       
                panel.add(scroller);
               
                frame.setSize(350,300);
                frame.setVisible(true);
                }
                public void actionPerformed(ActionEvent ev){
                                                                text.setPrefferedSize(new Dimension(350,350));
                                                                text.append("button clicked\n");
                }
                }

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is this the way you did it?



also..you forgot to add "text" to the panel

Anything new?