frame2.java~23~

JAVA教学用代码

package joptionpaneex;

import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import java.io.File;
import java.io.FileInputStream;
import java.io.*;
import java.awt.event.InputMethodEvent;
import java.awt.event.InputMethodListener;
import javax.swing.JPopupMenu;
import java.awt.event.MouseEvent;
import java.awt.event.MouseAdapter;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2007</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class Frame2 extends JFrame {
    BorderLayout borderLayout1 = new BorderLayout();
    JMenuBar jMenuBar1 = new JMenuBar();
    JMenu jMenu1 = new JMenu();
    JMenuItem jMenuItem1 = new JMenuItem();
    JMenuItem jMenuItem2 = new JMenuItem();
    JMenuItem jMenuItem3 = new JMenuItem();
    JMenuItem jMenuItem4 = new JMenuItem();
    JScrollPane jScrollPane1 = new JScrollPane();
    JTextArea jTextArea1 = new JTextArea();
    JFileChooser jFileChooser1 = new JFileChooser("e:\\wkx");
    JMenu jMenu2 = new JMenu();
    JMenuItem jMenuItem5 = new JMenuItem();
    JMenuItem jMenuItem6 = new JMenuItem();
    JMenuItem jMenuItem7 = new JMenuItem();
    JPopupMenu jPopupMenu1 = new JPopupMenu();
    JMenuItem jMenuItem8 = new JMenuItem();
    JMenuItem jMenuItem9 = new JMenuItem();
    JMenuItem jMenuItem10 = new JMenuItem();
    public Frame2() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }
    public static void main(String args[])
    {
        Frame2 frm=new Frame2();
        frm.setLocation(100,100);
        frm.setSize(600,450);
        frm.setVisible(true);

    }
    private void jbInit() throws Exception {
        getContentPane().setLayout(borderLayout1);
        jMenu1.setMnemonic('F');
        jMenu1.setText("文件(F)");
        jMenuItem1.setText("新建");
        jMenuItem1.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.
                event.KeyEvent.VK_N, java.awt.event.KeyEvent.CTRL_MASK, false));
        jMenuItem1.addActionListener(new Frame2_jMenuItem1_actionAdapter(this));
        jMenuItem2.setText("打开");
        jMenuItem2.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.
                event.KeyEvent.VK_O, java.awt.event.KeyEvent.CTRL_MASK, false));
        jMenuItem2.addActionListener(new Frame2_jMenuItem2_actionAdapter(this));
        jMenuItem3.setText("保存");
        jMenuItem3.addInputMethodListener(new
                                          Frame2_jMenuItem3_inputMethodAdapter(this));
        jMenuItem4.setText("推出");
        jScrollPane1.setVerticalScrollBarPolicy(JScrollPane.
                                                VERTICAL_SCROLLBAR_ALWAYS);
        this.setJMenuBar(jMenuBar1);
        jMenu2.setMnemonic('E');
        jMenu2.setText("编辑(E)");
        jMenuItem5.setText("粘贴");
        jMenuItem6.setText("复制");
        jMenuItem7.setText("剪切");
        jMenuItem8.setText("粘贴");
        jMenuItem9.setText("复制");
        jMenuItem10.setText("剪切");
        jTextArea1.addMouseListener(new Frame2_jTextArea1_mouseAdapter(this));
        jMenuBar1.add(jMenu1);
        jMenuBar1.add(jMenu2);
        jMenu1.add(jMenuItem1);
        jMenu1.add(jMenuItem2);
        jMenu1.add(jMenuItem3);
        jMenu1.add(jMenuItem4);
        this.getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);
        jScrollPane1.getViewport().add(jTextArea1);
        jMenu2.add(jMenuItem5);
        jMenu2.add(jMenuItem6);
        jMenu2.add(jMenuItem7);
        jPopupMenu1.add(jMenuItem8);
        jPopupMenu1.add(jMenuItem9);
        jPopupMenu1.add(jMenuItem10);
    }

    public void jMenuItem1_actionPerformed(ActionEvent e) {
        jTextArea1.setText("");
    }

    public void jMenuItem2_actionPerformed(ActionEvent e) {
        int t=jFileChooser1.showOpenDialog(this);
        //int t=jFileChooser1.showSaveDialog(this);

        File file=null;
        String strline=null;
        StringBuffer strbuf=null;
        String str=null;
        if(t==JFileChooser.APPROVE_OPTION)
        {
            JOptionPane.showMessageDialog(this,"打开");
            file=jFileChooser1.getSelectedFile();
            try {
//                FileInputStream fin = new FileInputStream(file);
                FileReader fin=new FileReader(file);
                BufferedReader bu=new BufferedReader(fin);
                strline=bu.readLine();
                while(strline!=null)
                {
                     str=str+strline+"\n";

                    strline=bu.readLine();
                }
                bu.close();
                fin.close();
                jTextArea1.setText(str);
            } catch (FileNotFoundException ex) {
            }catch(IOException ie)
            {

            }


        }
        if(t==JFileChooser.CANCEL_OPTION)
        {
            JOptionPane.showMessageDialog(this,"取消");
        }
    }

    public void jMenuItem3_caretPositionChanged(InputMethodEvent event) {

    }

    public void jTextArea1_mouseClicked(MouseEvent e) {
     //   jPopupMenu1.setVisible(true);
      jPopupMenu1.show(this,200,200);

    }
}


class Frame2_jTextArea1_mouseAdapter extends MouseAdapter {
    private Frame2 adaptee;
    Frame2_jTextArea1_mouseAdapter(Frame2 adaptee) {
        this.adaptee = adaptee;
    }

    public void mouseClicked(MouseEvent e) {
        adaptee.jTextArea1_mouseClicked(e);
    }
}


class Frame2_jMenuItem3_inputMethodAdapter implements InputMethodListener {
    private Frame2 adaptee;
    Frame2_jMenuItem3_inputMethodAdapter(Frame2 adaptee) {
        this.adaptee = adaptee;
    }

    public void inputMethodTextChanged(InputMethodEvent event) {
    }

    public void caretPositionChanged(InputMethodEvent event) {
        adaptee.jMenuItem3_caretPositionChanged(event);
    }
}


class Frame2_jMenuItem2_actionAdapter implements ActionListener {
    private Frame2 adaptee;
    Frame2_jMenuItem2_actionAdapter(Frame2 adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jMenuItem2_actionPerformed(e);
    }
}


class Frame2_jMenuItem1_actionAdapter implements ActionListener {
    private Frame2 adaptee;
    Frame2_jMenuItem1_actionAdapter(Frame2 adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jMenuItem1_actionPerformed(e);
    }
}