//TextAreaTest.java

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

public class TextAreaTest
{  
	public static void main(String[] args)
	{  
		TextAreaFrame frame = new TextAreaFrame();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.show();
	}
}

class TextAreaFrame extends JFrame
{
	public TextAreaFrame()
	{
		setTitle("TextAreaTest");
		setSize(WIDTH, HEIGHT);

		Container contentPane = getContentPane();

		//建立容納文本區(qū)的面板
		JPanel textPanel = new JPanel();

		//新建無回繞的文本區(qū)，行數(shù)為5，列數(shù)為20
		noWrapArea = new JTextArea("nowrap", 5, 20);
		//新建有回繞的文本區(qū)，行數(shù)為5，列數(shù)為20
		wrapArea = new JTextArea("wraparea", 5, 20);
		wrapArea.setLineWrap(true);
		//新建帶滾動條的文本區(qū)，行數(shù)為5，列數(shù)為20
		scrollArea = new JTextArea("scrollarea", 5, 20);
		//將文本區(qū)插入到滾動窗格中
		JScrollPane scrollPane = new JScrollPane(scrollArea);

		textPanel.add(noWrapArea);
		textPanel.add(wrapArea);
		//將滾動窗格加入到框架中
		textPanel.add(scrollPane);

		contentPane.add(textPanel);
	}

	public static final int WIDTH = 350;
	public static final int HEIGHT = 350;

	private JTextArea noWrapArea;
	private JTextArea wrapArea;
	private JTextArea scrollArea;
}