To Write program in Java to create applets to Create a color palette with matrix of buttons using applet viewer?

Answer 1

/* <applet code=palette height=600 width=600>

</applet> */

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

public class palette extends Applet implements ActionListener,ItemListener

{

Button[] colors;

Checkbox foreground,background;

TextArea workarea;

CheckboxGroup cbg;

Panel buttonpanel,checkpanel,palettepanel;

String colour;

public void init()

{

buttonpanel=new Panel();

buttonpanel.setLayout(new GridLayout(3,3));

colors=new Button[9];

colors[0]=new Button("RED");

colors[1]=new Button("GREEN");

colors[2]=new Button("BLUE");

colors[3]=new Button("CYAN");

colors[4]=new Button("ORANGE");

colors[5]=new Button("WHITE");

colors[6]=new Button("BLACK");

colors[7]=new Button("YELLOW");

colors[8]=new Button("PINK");

for(int i=0;i<9;i++)

{

colors[i].addActionListener(this);

buttonpanel.add(colors[i]);

}

checkpanel=new Panel();

checkpanel.setLayout(new FlowLayout());

cbg=new CheckboxGroup();

foreground=new Checkbox("ForeGround",cbg,true);

background=new Checkbox("BackGround",cbg,false);

foreground.addItemListener(this);

background.addItemListener(this);

checkpanel.add(foreground);

checkpanel.add(background);

workarea=new TextArea(8,40);

workarea.setFont(new Font("Garamond",Font.BOLD,20));

palettepanel=new Panel();

palettepanel.setLayout(new BorderLayout());

palettepanel.add(workarea,BorderLayout.CENTER);

palettepanel.add(checkpanel,BorderLayout.EAST);

palettepanel.add(buttonpanel,BorderLayout.SOUTH);

add(palettepanel);

}

public void itemStateChanged(ItemEvent ie)

{

}

public void actionPerformed(ActionEvent ae)

{

colour=ae.getActionCommand();

if(foreground.getState()==true)

workarea.setForeground(getColour());

if(background.getState()==true)

workarea.setBackground(getColour());

}

public Color getColour()

{

Color mycolor=null;

if(colour.equals("RED"))

mycolor=Color.red;

if(colour.equals("GREEN"))

mycolor=Color.green;

if(colour.equals("BLUE"))

mycolor=Color.blue;

if(colour.equals("CYAN"))

mycolor=Color.cyan;

if(colour.equals("ORANGE"))

mycolor=Color.orange;

if(colour.equals("WHITE"))

mycolor=Color.white;

if(colour.equals("BLACK"))

mycolor=Color.black;

if(colour.equals("YELLOW"))

mycolor=Color.yellow;

if(colour.equals("PINK"))

mycolor=Color.pink;

return mycolor;

}

}

Answer 2

getting the code