Disable Button
import java.applet.Applet;
import java.awt.Button;
public class DisableButtonExample extends
Applet
{
public void init()
{
Button Button1 = new Button("Ok");
Button Button2 = new
Button("Cancel");
add(Button1);
add(Button2);
Button2.setEnabled(false);
}
}
Handle Action Events for AWT Button
import java.applet.Applet;
import java.awt.Button;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class HandleActionEventExample extends
Applet implements ActionListener
{
String actionMessage="";
public void init()
{
Button Button1 = new Button("Ok");
Button Button2 = new
Button("Cancel");
add(Button1);
add(Button2);
Button1.addActionListener(this);
Button2.addActionListener(this);
}
public void paint(Graphics g)
{
g.drawString(actionMessage,10,50);
}
public void actionPerformed(ActionEvent ae)
{
String action = ae.getActionCommand();
if(action.equals("Ok"))
actionMessage = "Ok Button Pressed";
else if(action.equals("Cancel"))
actionMessage = "Cancel Button
Pressed";
repaint();
}
}
Hide Button
import java.applet.Applet;
import java.awt.Button;
public class HideButtonExample extends Applet
{
public void init()
{
Button Button1 = new Button("Ok");
Button Button2 = new
Button("Cancel");
add(Button1);
add(Button2);
Button2.setVisible(false);
}
}
Remove AWT Button From Applet or Window Frame
import java.applet.Applet;
import java.awt.Button;
public class RemoveButtonExample extends
Applet
{
public void init()
{
Button Button1 = new Button("Ok");
Button Button2 = new
Button("Cancel");
add(Button1);
add(Button2);
remove(Button1);
}
}
Set Action Command For AWT Button
import java.applet.Applet;
import java.awt.Button;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class ButtonSetActionCommandExample
extends Applet implements ActionListener
{
String actionMessage="";
public void init()
{
Button Button1 = new Button("I agree with
the terms and conditions"); add(Button1);
Button1.addActionListener(this);
Button1.setActionCommand("Agree");
}
public void paint(Graphics g)
{
g.drawString(actionMessage,10,50);
}
public void actionPerformed(ActionEvent ae)
{
String action = ae.getActionCommand();
actionMessage = action + " button
pressed!";
repaint();
}
}
Change Checkbox Background Color
import
java.applet.Applet;
import
java.awt.Checkbox;
import java.awt.Color;
public class
ChangeCheckboxBackgroundExample extends Applet
{
public void init()
{
Checkbox checkbox1 =
new Checkbox("Checkbox 1");
Checkbox checkbox2 =
new Checkbox("Checkbox 2");
checkbox1.setBackground(Color.red);
checkbox2.setBackground(Color.green);
add(checkbox1);
add(checkbox2);
}
}
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