JBuilder 9 开发一个文本编辑器

Font 菜单项开始，该菜单将引出一个FontChooser （字型选择）对话框。
　　给FontChooser附加一个菜单项事件(源程序)如下：


　　void jMenuItem5_actionPerformed(ActionEvent e) {
　　// Handle the "Edit Font" menu item
　　// Pick up the existing font from the text area
　　// and put it into the FontChooser before showing
　　// the FontChooser, so that we are editing the
　　// existing / previous font.

　　fontChooser1.setSelectedFont(jTextArea1.getFont());

　　// Obtain the new Font from the FontChooser.
　　// First test the return value of showDialog() to
　　// see if the user pressed OK.
　　if (fontChooser1.showDialog()) {
　　// Set the font of jTextArea1 to the font
　　// the user selected before pressing the OK button
　　jTextArea1.setFont(fontChooser1.getSelectedFont());
　　}
　　//repaints menu after item is selected
　　this.repaint();
　　//Repaints text properly if some text is highlighted when font is changed.
　　jTextArea1.repaint();
　　}

　　给JcolorChooser（颜色选择）附加一个菜单项事件

　　创建Edit

关键词：JBuilder 9 开发一个文本编辑器