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aman sagar
write a program to create an applet button which has a list of radio buttons with titles of various colours.set the background colour of the applet to the selected colour
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August 22, 2012 at 2:58 PM
Here is an applet example which has a list of radio buttons with titles of various colors and a button. The given code sets the background color of applet according to the radio button selected by the user.
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
public class GetSelectedRadioButton extends Applet implements ItemListener,ActionListener{
CheckboxGroup gp = null;
public void init(){
gp = new CheckboxGroup();
Checkbox c1 = new Checkbox("RED", gp, true);
Checkbox c2 = new Checkbox("GREEN", gp, false);
Checkbox c3 = new Checkbox("BLUE", gp, false);
Button b=new Button("OK");
add(c1);
add(c2);
add(c3);
add(b);
c1.addItemListener(this);
c2.addItemListener(this);
c3.addItemListener(this);
b.addActionListener(this);
}
public void itemStateChanged(ItemEvent ie) {
repaint();
}
public void actionPerformed(ActionEvent e){
Checkbox chk = gp.getSelectedCheckbox();
if(chk.getLabel().equals("RED")){
setBackground(Color.RED);
}
if(chk.getLabel().equals("GREEN")){
setBackground(Color.GREEN);
}
if(chk.getLabel().equals("BLUE")){
setBackground(Color.BLUE);
}
}
}
Now to call the above applet, you need to create an html code. Here it is:
<HTML> <BODY> <APPLET CODE ="GetSelectedRadioButton.class" WIDTH="800" HEIGHT="500"></APPLET> </BODY> </HTML>
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