Jtextarea
是为了娱乐
Plain Text
。应用于单个字符的设置适用于中的整个文档
Jtextarea
。但随着
JTextPane
或
JEditorPane
你有选择，而影响了你
String Literals
按照自己的喜好。在
JTextPane
的帮助下，您可以这样操作：
import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.*;import javax.swing.text.AttributeSet;import javax.swing.text.SimpleAttributeSet;import javax.swing.text.StyleConstants;import javax.swing.text.StyleContext;public class TextPaneTest extends Jframe{ private JPanel topPanel; private JTextPane tPane; public TextPaneTest() { topPanel = new JPanel(); setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE); setLocationRelativeTo(null); EmptyBorder eb = new EmptyBorder(new Insets(10, 10, 10, 10)); tPane = new JTextPane(); tPane.setBorder(eb); //tPane.setBorder(BorderFactory.createLineBorder(Color.DARK_GRAY)); tPane.setMargin(new Insets(5, 5, 5, 5)); topPanel.add(tPane); appendToPane(tPane, "My Name is Too Good.n", Color.RED); appendToPane(tPane, "I wish I could be ONE of THE BEST on ", Color.BLUE); appendToPane(tPane, "Stack", Color.DARK_GRAY); appendToPane(tPane, "Over", Color.MAGENTA); appendToPane(tPane, "flow", Color.ORANGE); getContentPane().add(topPanel); pack(); setVisible(true); } private void appendToPane(JTextPane tp, String msg, Color c) { StyleContext sc = StyleContext.getDefaultStyleContext(); AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, c); aset = sc.addAttribute(aset, StyleConstants.FontFamily, "Lucida Console"); aset = sc.addAttribute(aset, StyleConstants.Alignment, StyleConstants.ALIGN_JUSTIFIED); int len = tp.getdocument().getLength(); tp.setCaretPosition(len); tp.setCharacterAttributes(aset, false); tp.replaceSelection(msg); } public static void main(String... args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new TextPaneTest(); } }); }}
