CREATION OF COLOR PALETTE AND IMAGE LOADING

AIM:

To write a Applet program to create a color palette and create radio button for selecting the  foreground and background colors.

ALGORITHM:

Step 1: Create a color palette with a matrix of Buttons.

Step 2: Create a TextArea control.

Step 3: Create two Radiobutton for selecting the foreground and background colors.

Step 4: Set the foreground of the TextArea with color specified by the Button which is clicked only if the

                 radiobutton selected is foreground

Step 5: Otherwise set the background color of the TexeArea with color clicked.

PROGRAM:

import java.net.*;

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

public class MyApplet extends Applet implements ActionListener

{

 Panel p1,p2;

 Checkbox c1,c2;

 CheckboxGroup cbg;

 TextArea ta;

 Button b1,b2,b3;

 public void init()

 {

 setLayout(new BorderLayout());

 p1=new Panel(new FlowLayout());

 p2=new Panel(new GridLayout(2,2));

 cbg=new CheckboxGroup();

 c1=new Checkbox("FOREGROUND",cbg,true);

 c2=new Checkbox("BACKGROUND",cbg,false);

 p1.add(c1);

 p1.add(c2);

 add(p1,BorderLayout.NORTH);

 b1=new Button("RED");

 b2=new Button("BLUE");

 b3=new Button("GREEN");

 p2.add(b1);

 p2.add(b2);

 p2.add(b3);

 add(p2,BorderLayout.CENTER);

 ta=new TextArea("DEMO FOR COLOR PALETTE",15,20);

 p2.add(ta);

 b1.addActionListener(this);

 b2.addActionListener(this);

 b3.addActionListener(this);

}

 public void actionPerformed(ActionEvent ae)

 {

 String str=ae.getActionCommand();

 String str1=cbg.getSelectedCheckbox().getLabel();

 if(str1.equals("FOREGROUND"))

 {

 if(str=="RED")

 ta.setForeground(Color.red);

 if(str=="BLUE")

 ta.setForeground(Color.blue);

 if(str=="GREEN")

 ta.setForeground(Color.green);

 }

 else

 {

 if(str=="RED")

 ta.setBackground(Color.red);

 if(str=="BLUE")

 ta.setBackground(Color.blue);

 if(str=="GREEN")

 ta.setBackground(Color.green);

 }

 }

}

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