Java Program to Develop Programming Working with Color

by

Aim:

Develop Programming Working With Color.

Procedure:

  • Step 1: Open a New Java Application on Netbeans Editor.
  • Step 2: Open Netbeans Ide, Choose File -> new Project.
  • Step 3: New Open a New Project and Choose a Java Application.
  • Step 4: Add a Coding on Coding Windows Using Getter Setter Method.
  • Step 5: Run the Index Page and Verify the Result Page.
  • Step 6: Save the Project (Ctrl+s).
  • Step 7: Run the Project (F5).

Program:

package ex3;
import java.awt.*;
public class ColorDisplay extends Frame {
 int width, height;
 static Color colors[] =
 {Color.black, Color.blue, Color.cyan, Color.darkGray,
 Color.gray, Color.green, Color.lightGray, Color.magenta,
 Color.orange, Color.pink, Color.red, Color.white,
 Color.yellow};
 ColorDisplay () {
 super ("ColorDisplay");
 setBackground (Color.white);
 }
 static public void main (String args[]) {
 ColorDisplay f = new ColorDisplay();
 f.resize (300,300);
 f.show();
 }
 public void paint (Graphics g) {
 g.translate (insets().left, insets().top); 
if (width == 0) {
Insets inset = insets();
 width = (size().width - inset.right - inset.left) / 3;
 height = (size().height - inset.top - inset.bottom) / 5;
 }
 for (int i = 0; i < 3; i++) {
 for (int j = 0; j < 5; j++) {
 if ((i == 2) && (j >= 3)) break;
 g.setColor (colors[i*5+j]);
 g.fillRect (i*width, j*height, width, height);
 }
 }
 }
 public boolean keyDown (Event e, int c) {
 for (int i=0;i<colors.length;i++)
 colors[i] = colors[i].darker();
 repaint();
 return true;
 }
 public boolean mouseDown (Event e, int x, int y) {
 for (int i=0;i<colors.length;i++)
 colors[i] = colors[i].brighter();
 repaint();
return true;
 }
}

Output:

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