An applet to explore Color XOR mode with standard named colors
This also illustrates use of Applet PARAMeters

This applet shows the colors that result when standard colors are combined with XOR. The first rectangle in each row and column is a standard named color in java's Color class. Each remaining rectangle is the XOR of the color on the right of the row and the color on the top of the column. And this is the java code of the applet 
import java.awt.*;
import java.util.*;
import java.applet.Applet;

public class XOR extends Applet {

  // data stating parameters for drawing the clock
  private int windowWidth;
  private int windowHeight;
  private int numColors;
  private int frameDelay =  100; // roughly a 40th of a second

  public void paint( Graphics page ) {
    windowWidth = Integer.parseInt(getParameter("width"));
    windowHeight = Integer.parseInt(getParameter("height"));
    numColors = Integer.parseInt(getParameter("numColors"));

    System.out.println(windowWidth);
    System.out.println(windowHeight);
    System.out.println(numColors);

    setBackground( Color.white );

    // The 13 colors with defined names 
    Color color[] = 
     {Color.black, Color.blue, Color.cyan, Color.darkGray, 
      Color.gray, Color.green, Color.lightGray, Color.magenta, 
      Color.orange, Color.pink, Color.red, Color.yellow, 
      Color.white};
    String colorName[] =
     {"black", "blue", "cyan", "darkGray", 
      "gray", "green", "lightGray", "magenta", 
      "orange", "pink", "red", "yellow", 
      "white"};

    int numStripes = numColors + 1;
    int bandWidth = windowWidth/numStripes ;
    int bandHeight = windowHeight/numStripes ;

    // paint vertical stripes (leave first stripe alone)

    for ( int i = 1; i <= numColors; i++ ) {
      page.setColor( color[i-1] );
      // the vertical stripes
      page.fillRect( i*bandWidth, 0, 
                     bandWidth, windowHeight);
      // row header blocks
      page.fillRect( 0, i*bandHeight, 
                     bandWidth, bandHeight);
      page.setColor ( Color.white );
      page.drawString( colorName[i-1], 0, i*bandHeight );
    }

    // paint horizontal stripes (leave first stripe alone)
    // XORing with vertical stripes.

   if ( getParameter( "horizontal" ).equals( "true" ) )
    for ( int i = 1; i <= numColors; i++ ) {
      page.setXORMode( color[i-1] );
      page.fillRect( bandWidth, i*bandHeight, 
                     windowWidth - bandWidth, bandHeight );
    }

  } // method paint
} // class XOR