?? notebook5.java
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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.util.Date;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class NoteBook5 extends JFrame {
JTextArea jta;
class newl implements ActionListener {
public void actionPerformed(ActionEvent e) {
jta.setText("");
}
}
class openl implements ActionListener {
public void actionPerformed(ActionEvent e) {
JFileChooser jf = new JFileChooser();
jf.showOpenDialog(NoteBook5.this);
}
}
// 保存文件的監聽
class savel implements ActionListener {
public void actionPerformed(ActionEvent e) {
JFileChooser jf = new JFileChooser();
jf.showSaveDialog(NoteBook5.this);
}
}
// 打印的監聽 ?
class printl implements ActionListener {
public void actionPerformed(ActionEvent e) {
// PrintWriter p = new PrintWriter(NotePad.this);
}
}
// 退出記事本的監聽
class exitl implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.exit(0);// 退出
}
}
// 拷貝的監聽
class copyl implements ActionListener {
public void actionPerformed(ActionEvent e) {
jta.copy();
}
}
// 粘貼的監聽
class pastel implements ActionListener {
public void actionPerformed(ActionEvent e) {
jta.paste();
}
}
// 剪切的監聽
class cutl implements ActionListener {
public void actionPerformed(ActionEvent e) {
jta.cut();
}
}
// 查找的監聽
// 添加日期的監聽
class datel implements ActionListener {
public void actionPerformed(ActionEvent e) {
Date d = new Date();
jta.append(d.toString());
}
}
// 構造函數
public NoteBook5() {
jta = new JTextArea("", 24, 40);
JScrollPane jsp = new JScrollPane(jta);
JMenuBar jmb = new JMenuBar();
JMenu mFile = new JMenu("文件");
JMenu mEdit = new JMenu("編輯");
JMenuItem mNew = new JMenuItem("新建", KeyEvent.VK_N);
mNew.addActionListener(new newl());
mFile.add(mNew);
JMenuItem mOpen = new JMenuItem("打開", KeyEvent.VK_O);
mOpen.addActionListener(new openl());
mFile.add(mOpen);
JMenuItem mSave = new JMenuItem("保存");
mSave.addActionListener(new savel());
mFile.add(mSave);
mFile.addSeparator(); // 添加分割線
JMenuItem mPrint = new JMenuItem("打印");
mPrint.addActionListener(new printl());
mFile.add(mPrint);
mFile.addSeparator(); // 添加分割線
JMenuItem mExit = new JMenuItem("退出");
mExit.addActionListener(new exitl());
mFile.add(mExit);
mFile.setMnemonic(KeyEvent.VK_F);
// 編輯菜單的子菜單的處理
JMenuItem jmi;
jmi = new JMenuItem("復制");
jmi.addActionListener(new copyl());
mEdit.add(jmi);
jmi = new JMenuItem("剪切");
jmi.addActionListener(new cutl());
mEdit.add(jmi);
jmi = new JMenuItem("粘貼");
jmi.addActionListener(new pastel());
mEdit.add(jmi);
mEdit.addSeparator(); // 添加分割線
jmi = new JMenuItem("查找");
mEdit.add(jmi);
jmi = new JMenuItem("查找下一個");
mEdit.add(jmi);
mEdit.addSeparator();
jmi = new JMenuItem("全選");
mEdit.add(jmi);
jmi = new JMenuItem("時間");
jmi.addActionListener(new datel());
mEdit.add(jmi);
jmb.add(mFile);
jmb.add(mEdit);
this.setTitle("記事本");
this.setJMenuBar(jmb);
this.getContentPane().add(jsp);
this.setSize(600, 500);
this.setVisible(true);
}
// 主函數,程序入口點
public static void main(String s[]) {
new NoteBook5();
}
}
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