Using JTextArea : JTextArea « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. JTextArea

import java.awt.Dimension;
import java.awt.FlowLayout;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class JTextAreaTest {
  public static void main(String[] args) {
    JFrame.setDefaultLookAndFeelDecorated(true);
    JFrame frame = new JFrame("JTextArea Test");
    frame.setLayout(new FlowLayout());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    String text = "A JTextArea object represents a multiline area for displaying text. "
        + "You can change the number of lines that can be displayed at a time, "
        + "as well as the number of columns. You can wrap lines and words too. "
        + "You can also put your JTextArea in a JScrollPane to make it scrollable.";
    JTextArea textAreal = new JTextArea(text, 5, 10);
    textAreal.setPreferredSize(new Dimension(100, 100));
    JTextArea textArea2 = new JTextArea(text, 5, 10);
    textArea2.setPreferredSize(new Dimension(100, 100));
    JScrollPane scrollPane = new JScrollPane(textArea2, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
        JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
    textAreal.setLineWrap(true);
    textArea2.setLineWrap(true);
    frame.add(textAreal);
    frame.add(scrollPane);
    frame.pack();
    frame.setVisible(true);
  }
}

14.16.JTextArea
	14.16.1.	JTextArea: for multiple-line input.
	14.16.2.	Setting JTextArea Line Wrap and Wrap Style
	14.16.3.	Using JTextArea
	14.16.4.	Set font for I18N to JTextArea
	14.16.5.	Hello in Japanese
	14.16.6.	Using Actions with Text Components: JTextArea
	14.16.7.	Copy selected text from one text area to another
	14.16.8.	Modifying Text in a JTextArea Component
	14.16.9.	Insert some text after the 5th character
	14.16.10.	Append some text to JTextArea
	14.16.11.	Replace the first 3 characters with some text
	14.16.12.	Delete the first 5 characters
	14.16.13.	Enumerating the Lines in a JTextArea Component
	14.16.14.	Setting the Tab Size of a JTextArea Component
	14.16.15.	Moving the Focus with the TAB Key in a JTextArea Component
	14.16.16.	Customizing a JTextArea Look and Feel
	14.16.17.	Highlight of discontinous string
	14.16.18.	Setting text drag in a JTextArea
	14.16.19.	Enumerate the content elements with a ElementIterator