256 colorful nested squares only without the color...help

[evilmonkey]

I am using swing to nest squares with in squares (256 times) and that part is working fine, but what i want to do is change the color of each line so that the red green and blue components each increment by 1 each time the next line is drawn. I really never used jpanel or jframe much less swing. any help I coulg get would be appreciated.

Thanks in advance.

here is the code i've got thus far

package nestedsquare;
import javax.swing.JFrame;
 
public class Main {
 
    /** Creates a new instance of Main */
    public Main() {
    }
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
       JFrame application = new JFrame();
       DrawSquares   panel = new  DrawSquares();
       String myTitle = " NestedSquare ";
            application.setTitle(myTitle);
            application.add( panel ); // add the panel to the frame      
            application.setSize( 263, 290 ); // set the desired size
            application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            application.setVisible(true);
 
    }
 
}

package nestedsquare;
import java.awt.Graphics;
import javax.swing.JPanel;
 
public class DrawSquares extends JPanel
{
 
 
   public DrawSquares()
   {
 
   } 
 
   // draws a cascade of shapes starting from the top left corner
   public void paintComponent( Graphics g )
   {
      super.paintComponent( g );
 
      for ( int i = 0; i < 256; i++ )
      {
               g.drawRect( 1 + i++, 1 + i++, 
                  256 - i*2 , 256 - i*2 ); 
         }
      } 
   } // end method 

[DeMan]

I believe there is a fillRect function that takes a colour as its' last argument

[evilmonkey]

I looked in the API but can't find anything on it where can I go to learn about the fillRect function?

[DeMan]

if tyou have graphic called g
g.setColor(new Color(x, y, z))
/*notice Amaerican spelling for Color, and x y z are ints between 0 and 255
(you might like to play around with these values to find what you want */
and then
g.fillRect(x, y, width, height)

[evilmonkey]

if tyou have graphic called g
g.setColor(new Color(x, y, z))
/*notice Amaerican spelling for Color, and x y z are ints between 0 and 255
(you might like to play around with these values to find what you want */
and then
g.fillRect(x, y, width, height)

Thank you, I'll try it.

[r035198x]

I looked in the API but can't find anything on it where can I go to learn about the fillRect function?

There you go .

[DeMan]

Alternatively

There you go .

[evilmonkey]

Alternatively

Can anyone help me figure out how to nest the for loops I need to increment the red green blue by 1 each time it draws a new rectangle ?
for some reason netbeans can not find the symbols red, blue, green.



package nestedsquare;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;

public class DrawSquares extends JPanel
{
public DrawSquares()
{

}

public void paintComponent( Graphics g )
{
super.paintComponent(g);
//setBackground(Color.BLACK);

for ( int i = 0; i < 256; i++ )
{

for (int red =0; red <256; red++);
for (int green =0; green <256; green++);
for (int blue =0; blue <256; blue++);

g.setColor( new Color(red, green, blue));
//g.setColor(Color.RED);
g.drawRect( 1 + i++, 1 + i++,
256 - i*2 , 256 - i*2 );
}
}

} // end method

[r035198x]

Can anyone help me figure out how to nest the for loops I need to increment the red green blue by 1 each time it draws a new rectangle ?
for some reason netbeans can not find the symbols red, blue, green.



package nestedsquare;
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;

public class DrawSquares extends JPanel
{
public DrawSquares()
{

}

public void paintComponent( Graphics g )
{
super.paintComponent(g);
//setBackground(Color.BLACK);

for ( int i = 0; i < 256; i++ )
{

for (int red =0; red <256; red++);
for (int green =0; green <256; green++);
for (int blue =0; blue <256; blue++);

g.setColor( new Color(red, green, blue));
//g.setColor(Color.RED);
g.drawRect( 1 + i++, 1 + i++,
256 - i*2 , 256 - i*2 );
}
}

} // end method

All these statements

 for (int red =0; red <256; red++); 
for (int green =0; green <256; green++);
for (int blue =0; blue <256; blue++);
 

are all do nothing statements.