How to kill the applet

Question

how to kill the applet which in the browser.
With Regards
Santhosh

Answer 1

my code.. this is main program for my applet. can find out errors. if not i will send the code to u.
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.net.*;
import java.io.*;
public class StyleEditor extends Applet implements ItemListener ,ColorListener
    public ImageButton imgBold,imgItalic;
    public ColorButton colorButton;
    public Choice fontFace,fontSize;
    public TextArea textArea;
    public Panel toolBar,textPanel;
    public String content;
    public Font font = new Font("Arial",Font.ITALIC,16);
    public ColorDialog dialog;
    public Frame f;
    public String sColor;
    public InputStream in;
    private int size[] = {8,10,12,14,18,24,36};
    private Label textLabel;
    public void init()
        try
            setLayout(new BorderLayout());
            toolBar = new Panel();
            toolBar.setBackground(Color.lightGray);
            Toolkit toolkit = getToolkit();
            in = StyleEditor.class.getResourceAsStream("bold.gif");
            byte bin[] = new byte[in.available()];
            in.read(bin);
            Image ibold = toolkit.createImage(bin);
            in = StyleEditor.class.getResourceAsStream("italic.gif");
            byte binc[] = new byte[in.available()];
            in.read(binc);
            Image iitalic = toolkit.createImage(binc);
            imgBold = new ImageButton(ibold);
            imgItalic = new ImageButton(iitalic);
            fontFace = new Choice();
            fontSize = new Choice();
            colorButton = new ColorButton();
            f = new Frame();
            dialog = new ColorDialog(f,"Color Chooser",true,StyleEditor.this);
            textLabel = new Label("             Edit Style   ",Label.CENTER);
            textLabel.setFont(new Font("Arial",Font.BOLD,18));
            String editColor= getParameter("editcolor");
            if(editColor!=null)
                int eValue = Integer.parseInt(editColor,16);
                textLabel.setForeground(new Color(eValue));
            String fontArray[] = toolkit.getFontList();
            content = getParameter("style");
            String fname = getParameter("fname");
            String fsize = getParameter("fsize");
            Boolean bBold = new Boolean(getParameter("bold"));
            Boolean bItalic = new Boolean(getParameter("italic"));
            sColor= getParameter("oldcolor").substring(1);
            int value = Integer.parseInt(sColor,16);
            colorButton.setColor(new Color(value));
            boolean bold = bBold.booleanValue();
            boolean italic = bItalic.booleanValue();
            imgBold.setSelected(bold);
            imgItalic.setSelected(italic);
            for(int i=0;i<fontArray.length;i++)
                fontFace.addItem(fontArray);
fontFace.addItemListener(this);
for(int i=0;i<size.length;i++)
fontSize.addItem(size[i]+"");
fontSize.addItemListener(this);
toolBar.setLayout(new FlowLayout(FlowLayout.LEFT));
toolBar.add(imgBold);
toolBar.add(imgItalic);
toolBar.add(fontFace);
toolBar.add(fontSize);
toolBar.add(colorButton);
toolBar.add(textLabel);
textPanel = new Panel();
textPanel.setLayout(new BorderLayout());
textArea = new TextArea(content);
textArea.setEditable(false);
textArea.setBackground(Color.white);
textArea.setForeground(new Color(value));
if(fname!=null && fsize!=null)
setStyleFont(fname,fsize,bold,italic);
textPanel.add(textArea);
add(toolBar,BorderLayout.NORTH);
add(textPanel,BorderLayout.CENTER);
imgBold.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent ae)
boldActionPerformed(ae);
imgItalic.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent ae)
italicActionPerformed(ae);
colorButton.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent ae)
if(!dialog.isVisible())
dialog = null;
dialog = new ColorDialog(f,"Color Chooser",true,StyleEditor.this);
dialog.setLocation(colorButton.getLocation());
dialog.setLocation(200,200);
dialog.pack();
dialog.setVisible(true);
}catch(Exception e)
System.out.println(e);
public void setStyleFont(String fname,String fsize,boolean bold,boolean italic)
int s = sizeValue(Integer.parseInt(fsize));
fontFace.select(fname);
fontSize.select(s+"");
if(bold && italic)
font = new Font(fname,Font.BOLD+Font.ITALIC,s);
textArea.setFont(font);
return;
}else
if(bold)
font = new Font(fname,Font.BOLD,s);
textArea.setFont(font);
return;
}else
if(italic)
font = new Font(fname,Font.ITALIC,s);
textArea.setFont(font);
return;
}else
font = new Font(fname,Font.PLAIN,s);
textArea.setFont(font);
return;
public void itemStateChanged(ItemEvent e)
String f = fontFace.getSelectedItem();
String s = fontSize.getSelectedItem();
font = new Font(f,font.getStyle(),Integer.parseInt(s));
textArea.setFont(font);
public void boldActionPerformed(ActionEvent ae)
if(imgBold.isSelected())
if(imgItalic.isSelected())
font = new Font(font.getName(),Font.BOLD+Font.ITALIC,font.getSize());
textArea.setFont(font);
return;
font = new Font(font.getName(),Font.BOLD,font.getSize());
textArea.setFont(font);
return;
}else
if(imgItalic.isSelected())
font = new Font(font.getName(),Font.ITALIC,font.getSize());
textArea.setFont(font);
return;
font = new Font(font.getName(),Font.PLAIN,font.getSize());
textArea.setFont(font);
return;
public void italicActionPerformed(ActionEvent ae)
if(imgItalic.isSelected())
if(imgBold.isSelected())
font = new Font(font.getName(),Font.BOLD+Font.ITALIC,font.getSize());
textArea.setFont(font);
return;
font = new Font(font.getName(),Font.ITALIC,font.getSize());
textArea.setFont(font);
return;
}else
if(imgBold.isSelected())
font = new Font(font.getName(),Font.BOLD,font.getSize());
textArea.setFont(font);
return;
font = new Font(font.getName(),Font.PLAIN,font.getSize());
textArea.setFont(font);
return;
public boolean isBold()
return imgBold.isSelected();
public boolean isItalic()
return imgItalic.isSelected();
public void colorSelection(Color currentColor)
colorButton.setColor(currentColor);
textArea.setForeground(currentColor);
int r = currentColor.getRed();
String red = Integer.toHexString(r);
if(red.length()==1)
red = 0+red;
int g = currentColor.getGreen();
String green =Integer.toHexString(g);
if(green.length()==1)
green = 0+green;
int b = currentColor.getBlue();
String blue =Integer.toHexString(b);
if(blue.length()==1)
blue = 0+blue;
sColor = red+green+blue;
public String getName()
return font.getName();
public int getFSize()
switch(font.getSize())
case 8 : return 1;
case 10 : return 2;
case 12 : return 3;
case 14 : return 4;
case 18 : return 5;
case 24 : return 6;
case 36 : return 7;
default : return 0;
public int sizeValue(int value)
switch(value)
case 1 : return 8;
case 2 : return 10;
case 3 : return 12;
case 4 : return 14;
case 5 : return 18;
case 6 : return 24;
case 7 : return 36;
default : return 0;
public void stop()
System.out.println("Stop");
destroy();
public void destroy()
imgBold=null;
imgItalic=null;
colorButton = null;
fontFace =null;
fontSize=null;
textArea=null;
toolBar=null;
textPanel=null;
content=null;
font = null;
dialog=null;
f=null;
sColor=null;
in=null;
textLabel=null;
super.destroy();