Java important pro

Get Checkbox State

import java.applet.Applet;

import java.awt.Checkbox;

import java.awt.Graphics;

public class GetCheckboxState extends Applet

{

Checkbox checkBox1 = null;

Checkbox checkBox2 = null;

public void init(){checkBox1 = new Checkbox("My Checkbox 1"); checkBox2 = new Checkbox("My Checkbox 2", true);

add(checkBox1);

add(checkBox2);

}

public void paint(Graphics g)

{

g.drawString("Is checkbox 1 selected? " + checkBox1.getState(), 10, 80);

g.drawString("Is checkbox 2 selected? " + checkBox2.getState(), 10, 100);

   }

}

Handle Checkbox Event

import java.applet.Applet;

import java.awt.Checkbox;

import java.awt.Graphics;

import java.awt.event.ItemEvent;

import java.awt.event.ItemListener;

public class HandleCheckboxEvent extends Applet implements ItemListener

{

Checkbox java = null;

Checkbox vb = null;

Checkbox c = null;

public void init()

{

java = new Checkbox("Java");

vb = new Checkbox("Visual Basic");

c = new Checkbox("C");

add(java);

add(vb);

add(c);

java.addItemListener(this);

vb.addItemListener(this);

c.addItemListener(this);

}   

public void paint(Graphics g)

{           

g.drawString("Java: " + java.getState(),10,80);

g.drawString("VB: " + vb.getState(), 10, 100);

g.drawString("C: " + c.getState(), 10, 120);         

}     

public void itemStateChanged(ItemEvent ie)

{

repaint();             

   }

}

Hide Checkbox

import java.applet.Applet;

import java.awt.Checkbox;

public class HideCheckboxExample extends Applet

{ 

public void init()

{

Checkbox Checkbox1 = new Checkbox("Checkbox 1");

Checkbox Checkbox2 = new Checkbox("Checkbox 2");

add(Checkbox1);

add(Checkbox2);

Checkbox2.setVisible(false);

  }

}

Remove AWT Checkbox From Applet or Window Frame

import java.applet.Applet;

import java.awt.Checkbox;

public class RemoveCheckboxExample extends Applet

{

public void init()

{

Checkbox Checkbox1 = new Checkbox("Checkbox 1");

Checkbox Checkbox2 = new Checkbox("Checkbox 2");

add(Checkbox1);

add(Checkbox2);

remove(Checkbox1);

   }

}

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);

   }

}

Change Checkbox Font

import java.applet.Applet;

import java.awt.Checkbox;

import java.awt.Font;

public class ChangeCheckboxFontExample extends Applet

{

public void init()

{

Checkbox checkbox1 = new Checkbox("Checkbox 1");

Checkbox checkbox2 = new Checkbox("Checkbox 2");         

Font myFont = new Font("Courier", Font.ITALIC,12);

checkbox1.setFont(myFont);

add(checkbox1);

add(checkbox2);

   }

}

Change Checkbox Foreground Color

import java.applet.Applet;

import java.awt.Checkbox;

import java.awt.Color;

public class ChangeCheckboxForegroundExample extends Applet

{

public void init()

{

Checkbox checkBox1 = new Checkbox("Checkbox 1");

Checkbox checkBox2 = new Checkbox("Checkbox 2");

checkBox1.setForeground(Color.magenta);

checkBox2.setForeground(Color.blue);

add(checkBox1);

add(checkBox2);

   }

}