applet如何再弹出一个frame或panel

Question

在applet那里面你new一个frame或panel就可以了，不过你的IE安全级别不能太高，否则是打不开的

Answer 1

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.border.SoftBevelBorder.*;
public class BorderTest extends JApplet
{
public void init()
{
    frame=new JFrame();
frame.setResizable(false);
frame.setTitle("BorderPanel");
frame.setSize(WIDTH,HEIGHT);
frame.getContentPane().add(new BorderPanel());

Toolkit kit=Toolkit.getDefaultToolkit();
Dimension screenSize=kit.getScreenSize();
int screenHeight=screenSize.height;
int screenWidth=screenSize.width;

frame.setLocation(screenWidth/4,screenHeight/4);

JButton button=new JButton("BorderFrame");
getContentPane().add(button);
button.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
if(frame.isVisible()) frame.setVisible(false);
else frame.setVisible(true);
}
});
}
private JFrame frame;
public static final int WIDTH=600;
public  static final int HEIGHT=200;
}
/**
 a frame  with  radio buttons to pick a border style
 */
class BorderPanel extends JPanel
{
public BorderPanel()
{

setLayout(new BorderLayout());
demoPanel=new JPanel();
buttonPanel=new JPanel();

group=new ButtonGroup();

addRadioButton("Lowered bevel",BorderFactory.createLoweredBevelBorder());
addRadioButton("Raised bevel",BorderFactory.createRaisedBevelBorder());
addRadioButton("Etched",BorderFactory.createEtchedBorder());
addRadioButton("Line",BorderFactory.createLineBorder(Color.blue));
addRadioButton("Matte",BorderFactory.createMatteBorder(10,10,10,10,Color.blue));
addRadioButton("Empty",BorderFactory.createEmptyBorder());
addRadioButton("SoftBevel",BorderFactory.createBevelBorder(BevelBorder.RAISED,Color.black,Color.red));

Border etched=BorderFactory.createEtchedBorder();
Border titled=BorderFactory.createTitledBorder(etched,"Border types");
buttonPanel.setBorder(titled);

add(buttonPanel,BorderLayout.NORTH);
        add(demoPanel,BorderLayout.CENTER);
}
public void addRadioButton(String buttonName,final Border b)
{
JRadioButton button=new JRadioButton(buttonName);
button.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
demoPanel.setBorder(b);
validate();
}
});
group.add(button);
buttonPanel.add(button);
} 
private JPanel demoPanel;
private JPanel buttonPanel;
private ButtonGroup group;
}

Answer 2

我在公司写的那个关不了，在家那台机就关了，不过不是同一样的代码，这是刚刚写的，你试一下啦！import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
public class Applet1
    extends JApplet {
  JFrame frame;
  public void popp() {
     frame = new JFrame("Test");
    JPanel jPanel1 = new JPanel();
    JTextField jTextField1 = new JTextField();
    JButton jButton1 = new JButton();
    jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
      public void mouseClicked(MouseEvent e) {
        jB1_mouseClicked(e);
      }
    });    jButton1.addKeyListener(new java.awt.event.KeyAdapter() {
      public void keyPressed(KeyEvent e) {
        jB1_keyPressed(e);
      }
    });    frame.addWindowListener(new WindowAdapter(){
     public void windowClosed(WindowEvent e){t1.requestFocus();}});
    jPanel1.setLayout(null);
    jTextField1.setText("jTextField1");
    jTextField1.setBounds(new Rectangle(43, 46, 180, 25));
    jButton1.setBounds(new Rectangle(165, 205, 66, 26));
    jButton1.setText("jButton1");
    this.getContentPane().add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jTextField1, null);
    jPanel1.add(jButton1, null);
    frame.getContentPane().add(jPanel1);
    frame.setSize(500, 500);
    frame.setLocationRelativeTo(null);
    frame.show();
  }  private boolean isStandalone = false;
  JPanel jPanel1 = new JPanel();
  JToggleButton jToggleButton1 = new JToggleButton();
  JTextField t1 = new JTextField();
  //Get a parameter value
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
        (getParameter(key) != null ? getParameter(key) : def);
  }  //Construct the applet
  public Applet1() {
  }  //Initialize the applet
  public void init() {
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }  //Component initialization
  private void jbInit() throws Exception {
    this.setSize(new Dimension(400, 300));
    jPanel1.setLayout(null);
    jToggleButton1.setText("jToggleButton1");
    jToggleButton1.setBounds(new Rectangle(60, 79, 67, 31));
    jToggleButton1.addMouseListener(new Applet1_jToggleButton1_mouseAdapter(this));
    t1.setText("jTextField1");
    t1.setBounds(new Rectangle(33, 26, 265, 30));
    this.getContentPane().add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jToggleButton1, null);
    jPanel1.add(t1, null);
  }
  public String getAppletInfo() {
    return "Applet Information";
  }
  public String[][] getParameterInfo() {
    return null;
  }  static {
    try {
    }
    catch (Exception e) {
    }
  }  void jB1_mouseClicked(MouseEvent e) {
    frame.dispose();
    //frame.hide();
  }  void jB1_keyPressed(KeyEvent e) {
    t1.requestFocus();
  }  void jToggleButton1_mouseClicked(MouseEvent e) {
    popp();
  }
}class Applet1_jToggleButton1_mouseAdapter
    extends java.awt.event.MouseAdapter {
  Applet1 adaptee;  Applet1_jToggleButton1_mouseAdapter(Applet1 adaptee) {
    this.adaptee = adaptee;
  }  public void mouseClicked(MouseEvent e) {
    adaptee.jToggleButton1_mouseClicked(e);
  }
}

Answer 3

真奇怪，点试都得，难到公司的机有毛病？？？
  
void jB1_mouseClicked(MouseEvent e) {
    frame.dispose();//用这个关闭就可以触发windowsclosed的listener这个下面的就不行,但一样可以关闭
    //frame.hide();
    //frame.setVisible(false);
  }