JAVA文本编辑器源码.pdf

/* *To change this template, choose Tools |Templates * and open the template in the editor. */ package NotepadDemo; /** * *@author DELL */ import java.awt.BorderLayout; import java.awt.FileDialog; import java.awt.Font; import java.awt.datatransfer.Clipboard; import java.awt.datatransfer.DataFlavor; import java.awt.datatransfer.StringSelection; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.UnsupportedFlavorException; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.border.TitledBorder; public class NotepadDemo extends JFrame { private static final long serialVersionUID = -5355432125621015300L; private String url = null;//文件路径 private String str=null;//复制或剪切 的字符串 private StringSelection stringSelection=null; private Clipboard clipboard=new Clipboard(str); private Transferable transferable=null; private DataFlavor flavor=null; public NotepadDemo() { init(); } private void init() { setTitle(文本编辑器); setSize(500, 600); setContentPane(createContentPane());//添加主面板 } /*创建主面板*/ private JPanel createContentPane() { JPanel pane = new JPanel(new BorderLayout()); pane.add(BorderLayout.NORTH, createChocePane());//添加菜单栏 pane.add(createAreaPane());//添加文本编辑区域 return pane; } /*创建菜单栏，以及实现功能*/ private JPanel createChocePane() { JPan