help me ??????????

Question

问题表现如下
1.通过jbuilder2006向导建立一只Application1程序.
2.在这支package上向导建立一只Dialog1.
3.在Application1的Frame1上的menu添加一个菜单项
4.添加menu的代码如下
   public void jMenuItem1_actionPerformed(ActionEvent e) {
        Dialog1 D = new Dialog1(this);//此语句出错
        
    }
    为何调用Dialog1出错,提示如下
     canno find symbol:constructor....
     internal error:cannot instantiate...谁能帮我?

Answer 1

package untitled1;import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JToolBar;
import javax.swing.JButton;
import javax.swing.ImageIcon;
import javax.swing.JLabel;/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2007</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class Frame1 extends JFrame {
    JPanel contentPane;
    BorderLayout borderLayout1 = new BorderLayout();
    JMenuBar jMenuBar1 = new JMenuBar();
    JMenu jMenuFile = new JMenu();
    JMenuItem jMenuFileExit = new JMenuItem();
    JMenu jMenuHelp = new JMenu();
    JMenuItem jMenuHelpAbout = new JMenuItem();
    JToolBar jToolBar = new JToolBar();
    JButton jButton1 = new JButton();
    JButton jButton2 = new JButton();
    JButton jButton3 = new JButton();
    ImageIcon image1 = new ImageIcon(untitled1.Frame1.class.getResource(
            "openFile.png"));
    ImageIcon image2 = new ImageIcon(untitled1.Frame1.class.getResource(
            "closeFile.png"));
    ImageIcon image3 = new ImageIcon(untitled1.Frame1.class.getResource(
            "help.png"));
    JLabel statusBar = new JLabel();
    JMenuItem jMenuItem1 = new JMenuItem();    public Frame1() {
        try {
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {
        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(borderLayout1);
        setSize(new Dimension(400, 300));
        setTitle("Frame Title");
        statusBar.setText(" ");
        jMenuFile.setText("File");
        jMenuFileExit.setText("Exit");
        jMenuFileExit.addActionListener(new Frame1_jMenuFileExit_ActionAdapter(this));
        jMenuHelp.setText("Help");
        jMenuHelpAbout.setText("About");
        jMenuHelpAbout.addActionListener(new
                                         Frame1_jMenuHelpAbout_ActionAdapter(this));
        jMenuItem1.setText("AA");
        jMenuItem1.addActionListener(new Frame1_jMenuItem1_actionAdapter(this));
        jMenuBar1.add(jMenuFile);
        jMenuFile.add(jMenuItem1);
        jMenuFile.add(jMenuFileExit);
        jMenuBar1.add(jMenuHelp);
        jMenuHelp.add(jMenuHelpAbout);
        setJMenuBar(jMenuBar1);
        jButton1.setIcon(image1);
        jButton1.setToolTipText("Open File");
        jButton2.setIcon(image2);
        jButton2.setToolTipText("Close File");
        jButton3.setIcon(image3);
        jButton3.setToolTipText("Help");
        jToolBar.add(jButton1);
        jToolBar.add(jButton2);
        jToolBar.add(jButton3);
        contentPane.add(jToolBar, BorderLayout.NORTH);
        contentPane.add(statusBar, BorderLayout.SOUTH);
    }    /**
     * File | Exit action performed.
     *
     * @param actionEvent ActionEvent
     */
    void jMenuFileExit_actionPerformed(ActionEvent actionEvent) {
        System.exit(0);
    }    /**
     * Help | About action performed.
     *
     * @param actionEvent ActionEvent
     */
    void jMenuHelpAbout_actionPerformed(ActionEvent actionEvent) {
        Frame1_AboutBox dlg = new Frame1_AboutBox(this);
        Dimension dlgSize = dlg.getPreferredSize();
        Dimension frmSize = getSize();
        Point loc = getLocation();
        dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x,
                        (frmSize.height - dlgSize.height) / 2 + loc.y);
        dlg.setModal(true);
        dlg.pack();
        dlg.setVisible(true);
    }    public void jMenuItem1_actionPerformed(ActionEvent e) {
        Dialog1 D = new Dialog1(this);
        
    }
}
class Frame1_jMenuFileExit_ActionAdapter implements ActionListener {
    Frame1 adaptee;    Frame1_jMenuFileExit_ActionAdapter(Frame1 adaptee) {
        this.adaptee = adaptee;
    }    public void actionPerformed(ActionEvent actionEvent) {
        adaptee.jMenuFileExit_actionPerformed(actionEvent);
    }
}
class Frame1_jMenuItem1_actionAdapter implements ActionListener {
    private Frame1 adaptee;
    Frame1_jMenuItem1_actionAdapter(Frame1 adaptee) {
        this.adaptee = adaptee;
    }    public void actionPerformed(ActionEvent e) {
        adaptee.jMenuItem1_actionPerformed(e);
    }
}
class Frame1_jMenuHelpAbout_ActionAdapter implements ActionListener {
    Frame1 adaptee;    Frame1_jMenuHelpAbout_ActionAdapter(Frame1 adaptee) {
        this.adaptee = adaptee;
    }    public void actionPerformed(ActionEvent actionEvent) {
        adaptee.jMenuHelpAbout_actionPerformed(actionEvent);
    }
}

Answer 2

package untitled1;import java.awt.BorderLayout;
import java.awt.Frame;import javax.swing.JDialog;
import javax.swing.JPanel;/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2007</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class Dialog1 extends JDialog {
    JPanel panel1 = new JPanel();
    BorderLayout borderLayout1 = new BorderLayout();    public Dialog1(Frame owner, String title, boolean modal) {
        super(owner, title, modal);
        try {
            setDefaultCloseOperation(DISPOSE_ON_CLOSE);
            jbInit();
            pack();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }    public Dialog1() {
        this(new Frame(), "Dialog1", false);
    }    private void jbInit() throws Exception {
        panel1.setLayout(borderLayout1);
        getContentPane().add(panel1);
    }
}

Answer 3

public void jMenuItem1_actionPerformed(ActionEvent e) {
Dialog1 D = new Dialog1();
D.setVisible(true);
}

Answer 4

to:
sprite_bei() ( ) 
错误还是没有处理

Answer 5

Dialog1 这个类中没有参数是Frame1 的构造函数
Dialog1 D = new Dialog1(this);这句就不对了.

Answer 6

to :john_sheep
如何解决???

Answer 7

Dialog1 D = new Dialog1(this);无此构造函数。

Answer 8

改成Dialog1 D = new Dialog1();
我这运行出来了

Answer 9

public void jMenuItem1_actionPerformed(ActionEvent e) {
        Dialog1 D = new Dialog1(this,"title",true);
        D.setSize(200,200);
        D.setVisible(true);
    }

Answer 10

Sprite_bei() ( ) 信誉：100    Blog   加为好友  2007-04-12 15:13:20  得分: 0  
 
 
   public void jMenuItem1_actionPerformed(ActionEvent e) {
Dialog1 D = new Dialog1();
D.setVisible(true);
}
  
 
-------------
这就是解决方法

Answer 11

zhuokai() ( ) 信誉：100    Blog   加为好友  2007-04-12 16:35:10  得分: 0  
 
 
   public void jMenuItem1_actionPerformed(ActionEvent e) {
        Dialog1 D = new Dialog1(this,"title",true);
        D.setSize(200,200);
        D.setVisible(true);
    }
  
 
---------
这个也是解决方法.具体看楼主的需要