notebook.txt

this a easy botebook,it include open file ,new creat file ,copy file,paste file ,delete file and so

import java.io.*; 
import java.util.Calendar; 
import java.awt.*; 
import java.awt.event.*; 

import javax.swing.*; 
public class NoteBook extends JFrame implements ActionListener,ItemListener,WindowListener,MouseListener{ 
Container c = this.getContentPane(); 
JMenuBar jmb = new JMenuBar(); 
JColorChooser jcc = new JColorChooser(); 

JMenu jm1 = new JMenu("文件(F)"); 
JMenu jm2 = new JMenu("编辑(E)"); 
JMenu jm3 = new JMenu("格式(O)"); 
JMenu jm4 = new JMenu("查看(V)"); 
JMenu jm5 = new JMenu("帮助(H)"); 

JMenuItem jmi1 = new JMenuItem("新建(N)"); 
JMenuItem jmi2 = new JMenuItem("打开(O)"); 
JMenuItem jmi3 = new JMenuItem("保存(S)"); 
JMenuItem jmi4 = new JMenuItem("退出(X)"); 

JMenuItem jmi5 = new JMenuItem("撤消(U)"); 
JMenuItem jmi6 = new JMenuItem("复制(C)"); 
JMenuItem jmi7 = new JMenuItem("粘贴(P)"); 
JMenuItem jmi8 = new JMenuItem("剪切(T)"); 
JMenuItem jmi12 = new JMenuItem("日期和时间"); 

JMenuItem jmi9 = new JMenuItem("字体(E)"); 
JCheckBoxMenuItem jcbmi = new JCheckBoxMenuItem("自动换行(W)"); 

JMenuItem jmi10 = new JMenuItem("删除(S)"); 

JMenuItem jmi11 = new JMenuItem("背景颜色(H)"); 

JTextArea jta = new JTextArea(15,15); 

JScrollPane jsp = new JScrollPane(jta); 
//PupolMenu pm = new Pupolmenu(); 

NoteBook(){ 
this.addWindowListener(this); 
c.setLayout(new BorderLayout()); 
c.add(jmb,BorderLayout.NORTH); 
this.setTitle("新建 文本文档"); 
jmb.add(jm1); 
jm1.setMnemonic('f'); 
jm1.addActionListener(this); 
jmb.add(jm2); 
jm2.setMnemonic('e'); 
jmb.add(jm3); 
jm3.setMnemonic('o'); 
jmb.add(jm4); 
jm4.setMnemonic('v'); 
jmb.add(jm5); 
jm5.setMnemonic('h'); 

jm1.add(jmi1); 
jmi1.addActionListener(this); 
jmi1.setAccelerator(KeyStroke.getKeyStroke('N',Event.CTRL_MASK,false)); 
jm1.addSeparator(); 
jm1.add(jmi2); 
jmi2.setAccelerator(KeyStroke.getKeyStroke('O',Event.CTRL_MASK,false)); 
jmi2.addActionListener(this); 
jm1.addSeparator(); 
jm1.add(jmi3); 
jmi3.setAccelerator(KeyStroke.getKeyStroke('S',Event.CTRL_MASK,false)); 
jmi3.addActionListener(this); 
jm1.addSeparator(); 
jm1.add(jmi4); 
jmi1.setMnemonic('n'); 
jmi2.setMnemonic('o'); 
jmi3.setMnemonic('s'); 
jmi4.setMnemonic('x'); 
jmi4.addActionListener(this); 

jm2.add(jmi5); 
jm2.addSeparator(); 
jm2.add(jmi6); 
jm2.addSeparator(); 
jm2.add(jmi7); 
jm2.addSeparator(); 
jm2.add(jmi8); 
jm2.add(jmi12); 
jmi12.addActionListener(this); 

jm3.add(jcbmi); 
jcbmi.addItemListener(this); 
jm3.addSeparator(); 
jm3.add(jmi9); 

jm4.add(jmi10); 
jmi10.addActionListener(this); 

jm5.add(jmi11); 
jmi11.addActionListener(this); 

c.add(jsp); 
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); 
this.setSize(500,500); 
this.setVisible(true); 

} 
public void actionPerformed(ActionEvent e){ 
if(e.getSource()==jmi1){ 
jta.setText(""); 
this.setTitle("无标题 - 记事本"); 
} 
if(e.getSource()==jmi2){ 
File f1; 
JFileChooser jfc1 = new JFileChooser(); 
int num1 = jfc1.showOpenDialog(this); 
if(num1==JFileChooser.APPROVE_OPTION){ 
try{ 
f1 = jfc1.getSelectedFile(); 
this.setTitle(f1.getName()); 
FileReader fr = new FileReader(f1); 
BufferedReader br = new BufferedReader(fr); 
String str; 
while((str = br.readLine())!=null){ 
jta.setText(str); 
} 
fr.close(); 
br.close(); 
}catch(FileNotFoundException e1){ 
e1.printStackTrace(); 
}catch(IOException e2){ 
e2.printStackTrace(); 
} 
} 
} 
if(e.getSource()==jmi3){ 
File f2 = null; 
JFileChooser jfc2 = new JFileChooser(); 
int num2 = jfc2.showSaveDialog(this); 
if(num2==JFileChooser.APPROVE_OPTION){ 
f2=jfc2.getSelectedFile(); 
this.setTitle(f2.getName()); 
try{ 
FileWriter fw = new FileWriter(f2); 
BufferedWriter bw = new BufferedWriter(fw); 

bw.write(jta.getText()); 
bw.close(); 
fw.close(); 
}catch(IOException e2){ 
e2.printStackTrace(); 
} 
} 

} 
if(e.getSource()==jmi4){ 
int a = JOptionPane.showConfirmDialog(this,"文件已被改变，是否要保存？","提示",JOptionPane.YES_NO_CANCEL_OPTION); 
if(a==1){ 
this.dispose(); 
}else if(a==0){ 
File f2 = null; 
JFileChooser jfc2 = new JFileChooser(); 
int num2 = jfc2.showSaveDialog(this); 
if(num2==JFileChooser.APPROVE_OPTION){ 
f2=jfc2.getSelectedFile(); 
this.setTitle(f2.getName()); 
try{ 
FileWriter fw = new FileWriter(f2); 
BufferedWriter bw = new BufferedWriter(fw); 

bw.write(jta.getText()); 
bw.close(); 
fw.close(); 
}catch(IOException e2){ 
e2.printStackTrace(); 
} 
this.dispose(); 
} 

} 
} 
if(e.getSource()==jmi12){ 
Calendar c1 =Calendar.getInstance(); 
int y = c1.get(Calendar.YEAR); 
int m = c1.get(Calendar.MONTH); 
int d = c1.get(Calendar.DATE); 
int h = c1.get(Calendar.HOUR); 
int m1 = c1.get(Calendar.MINUTE); 
int m2 = m+1; 
jta.setText(y+"年"+m2+"月"+d+"日"+h+":"+m1); 
} 
if(e.getSource()==jmi11){ 
Color ccc = JColorChooser.showDialog(this,"color",Color.BLACK); 
jta.setSelectedTextColor(ccc); 
jta.setBackground(ccc); 
} 
if(e.getSource()==jmi10){ 
jta.replaceRange("",jta.getSelectionStart(),jta.getSelectionEnd()); 
} 

} 
public void itemStateChanged(ItemEvent e2){ 
if(e2.getItemSelectable()==jcbmi){ 
jta.setLineWrap(true); 
}else 
jta.setLineWrap(false); 

} 
public static void main(String[] args){ 
new NoteBook(); 
} 
public void windowOpened(WindowEvent arg0) { 

} 
public void windowClosing(WindowEvent arg0) { 

int a = JOptionPane.showConfirmDialog(this,"文件已被改变，是否要保存？","提示",JOptionPane.YES_NO_CANCEL_OPTION); 
if(a==1){ 
this.dispose(); 
}else if(a==0){ 
File f2 = null; 
JFileChooser jfc2 = new JFileChooser(); 
int num2 = jfc2.showSaveDialog(this); 
if(num2==JFileChooser.APPROVE_OPTION){ 
f2=jfc2.getSelectedFile(); 
this.setTitle(f2.getName()); 
try{ 
FileWriter fw = new FileWriter(f2); 
BufferedWriter bw = new BufferedWriter(fw); 

bw.write(jta.getText()); 
bw.close(); 
fw.close(); 
}catch(IOException e2){ 
e2.printStackTrace(); 
} 
} 
if(a==2){ 
////????/????????????????????????????????????????????????????????????????// 
} 
} 
} 
public void windowClosed(WindowEvent arg0) { 

} 
public void windowIconified(WindowEvent arg0) { 
// TODO Auto-generated method stub 

} 
public void windowDeiconified(WindowEvent arg0) { 
// TODO Auto-generated method stub 

} 
public void windowActivated(WindowEvent arg0) { 
// TODO Auto-generated method stub 

} 
public void windowDeactivated(WindowEvent arg0) { 
// TODO Auto-generated method stub 

} 
public void mouseClicked(MouseEvent arg0) { 
// TODO Auto-generated method stub 

} 
public void mousePressed(MouseEvent arg0) { 
// TODO Auto-generated method stub 

} 
public void mouseReleased(MouseEvent arg0) { 
// TODO Auto-generated method stub 

} 
public void mouseEntered(MouseEvent arg0) { 
// TODO Auto-generated method stub 

} 
public void mouseExited(MouseEvent arg0) { 
// TODO Auto-generated method stub 

} 
}