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845天前package myframe; |
import java.awt.BorderLayout; |
import java.awt.event.ActionEvent; |
import java.awt.event.ActionListener; |
import javax.swing.JButton; |
import javax.swing.JFileChooser; |
import javax.swing.JFrame; |
import javax.swing.JMenu; |
import javax.swing.JMenuBar; |
import javax.swing.JMenuItem; |
import javax.swing.JScrollBar; |
import javax.swing.JScrollPane; |
import javax.swing.JTextArea; |
import javax.swing.JToolBar; |
import java.io.*; |
public class notepad extends JFrame implements ActionListener { |
JMenuBar menu; |
JMenu menu1, menu2, menu3, menu4, menu5; |
JMenuItem mi2, mi3, mi4, mi5, mi6; |
JMenu ej; |
JMenuItem ej1, ej2; |
JToolBar toolbar; |
JButton button1, button2, button3, button4, button5; |
JTextArea textarea; |
JScrollPane gdt; |
public notepad() { |
|
toolbar = new JToolBar(); |
button1 = new JButton("新建"); |
button2 = new JButton("打开"); |
button3 = new JButton("剪切"); |
button4 = new JButton("复制"); |
button5 = new JButton("粘贴"); |
menu = new JMenuBar(); |
menu1 = new JMenu("文件 "); |
// menu1.setFont(null); |
//menu1.setMnemonic('f'); |
menu2 = new JMenu("编辑(E)"); |
menu2.setMnemonic('e'); |
menu3 = new JMenu("格式(O)"); |
menu3.setMnemonic('O'); |
menu4 = new JMenu("查看(V)"); |
menu4.setMnemonic('V'); |
menu5 = new JMenu("帮助(H)"); |
menu5.setMnemonic('H'); |
ej = new JMenu("新建"); |
ej1 = new JMenuItem("文件"); |
ej2 = new JMenuItem("模板"); |
mi2 = new JMenuItem("打开"); |
mi2.addActionListener(this); |
mi2.setActionCommand("open"); |
mi3 = new JMenuItem("保存（S）"); |
mi3.setMnemonic('s'); |
mi3.addActionListener(this); |
mi3.setActionCommand("save"); |
mi4 = new JMenuItem("另存为"); |
mi5 = new JMenuItem("页面布局"); |
mi6 = new JMenuItem("退出"); |
textarea = new JTextArea(); |
gdt = new JScrollPane(textarea); |
toolbar.add(button1); |
toolbar.add(button2); |
toolbar.add(button3); |
toolbar.add(button4); |
toolbar.add(button5); |
ej.add(ej1); |
ej.add(ej2); |
menu.add(ej); |
menu1.add(ej); |
menu1.add(mi2); |
menu1.addSeparator(); |
menu1.add(mi3); |
menu1.add(mi4); |
// menu1.addSeparator(); |
menu1.add(mi5); |
menu1.add(mi6); |
menu.add(menu1); |
menu.add(menu2); |
menu.add(menu3); |
menu.add(menu4); |
menu.add(menu5); |
menu.add(menu5); |
this.setTitle("记事本"); |
this.setSize(800, 700); |
this.setJMenuBar(menu); |
this.add(toolbar, BorderLayout.SOUTH); |
this.add(gdt); |
this.setDefaultCloseOperation(3); |
this.setVisible(true); |
} |
public static void main(String[] args) { |
JFrame notepad = new notepad(); |
} |
@Override |
public void actionPerformed(ActionEvent e) { |
String s = e.getActionCommand(); |
if (s.equals("open")) { |
JFileChooser choose = new JFileChooser(); |
choose.setDialogTitle("打开文件"); |
choose.showOpenDialog(null); |
choose.setVisible(true); |
String path = choose.getSelectedFile().getAbsolutePath();//GET the whole path of the file |
FileReader read = null; |
BufferedReader bufferread = null; |
try { |
read = new FileReader(path); |
bufferread = new BufferedReader(read); |
String f = "", c = ""; |
while ((f = bufferread.readLine()) != null) { |
c = c + (f + "\n"); |
} |
textarea.setText(c); |
} catch (Exception e1) { |
} finally { |
try { |
read.close(); |
bufferread.close(); |
} catch (Exception e1) { |
} |
} |
} else if (s.equals("save")) { |
JFileChooser ch= new JFileChooser(); |
ch.setDialogTitle("另存为"); |
ch.showSaveDialog(null); |
ch.setVisible(true); |
|
String path= ch.getSelectedFile().getAbsolutePath(); |
try{ |
PrintStream p1 = new PrintStream(path); |
System.setOut(p1); |
System.out.println(this.textarea.getText()); |
}catch(Exception e2){ |
|
} |
|
} |
} |
} |
