Java: Example - JTextArea

// components/textarea/TextAreaDemo.java
// Purpose: Illustrate JTextArea, JScrollPane, BorderFactory, ...
// Author: Fred Swartz
// Date  : 2000-04-26, ... 2004-11-03

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

public class TextAreaDemo extends JFrame {
    //============================================== instance variables
    JTextArea m_resultArea = new JTextArea(6, 30);
        
    //====================================================== constructor
    public TextAreaDemo() {
        //... Set initial text, scrolling, and border.
        m_resultArea.setText("Enter more text to see scrollbars");
        JScrollPane scrollingArea = new JScrollPane(m_resultArea);
        scrollingArea.setBorder(BorderFactory.createEmptyBorder(10,5,10,5));
        
        // Get the content pane, set layout, add to center
        Container content = this.getContentPane();
        content.setLayout(new BorderLayout());
        content.add(scrollingArea, BorderLayout.CENTER);
        this.pack();
    }
    
    //============================================================= main
    public static void main(String[] args) {
        JFrame win = new TextAreaDemo();
        win.setTitle("TextAreaDemo");
        win.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        win.setVisible(true);
    }
}