Java Foundation Classes in a Nutshell

Example 3−3: Using JTable and TableModel (continued)

case 0: return filenames[row];

case 1: return new Long(f.length());

case 2: return new Date(f.lastModified());

case 3: return f.isDirectory() ? Boolean.TRUE : Boolean.FALSE;

case 4: return f.canRead() ? Boolean.TRUE : Boolean.FALSE;

case 5: return f.canWrite() ? Boolean.TRUE : Boolean.FALSE;

default: return null;

}

}

}

JTextComponent and HTML Text Display

The most complex component in all of Swing is the JTextComponent, which is a

power ful editor. It is part of the

javax.swing.text package and generally is not

used directly. Instead, you typically use one of its subclasses, such as

JTextField,

JPasswordField, JTextArea,orJEditorPane. The first three of these components

ar e straightforward. They are for the entry of a single line of text, secret text such

as a password, and simple, unformatted, multiline text, respectively.

It is the

JEditorPane component that really makes use of the full power of

JTextComponent. JEditorPane supports the display and editing of complex format-

ted text. In conjunction with the classes in the

javax.swing.text.html and

javax.swing.text.rtf packages, JEditorPane can display and edit HTML and

RTF documents. The ability to display formatted text so easily is a very powerful

featur e. For example, the ability to display HTML documents makes it simple for a

Swing application to add online help based on an HTML version of the applica- ...