// An example of image writing in Java
//
// Create a new png image, and save it
// 
// REF (BufferedImage Class API):
// http://java.sun.com/j2se/1.4.2/docs/api/java/awt/image/BufferedImage.html
// 
// M. Branicky, 10/11/06



import java.awt.image.*;
import javax.imageio.*;
import java.io.*;


public class NewImage2
{
  // 0xNUM is how to put a HEXadecimal (base 16: digits 0-F) constant into Java
  // See http://cloford.com/resources/colours/500col.htm for HEX color codes
  public static final int BLACK = 0, WHITE = 0xFFFFFF;
  public static final int BLUE = 0xFF, GREEN = 0xFF00, RED=0xFF0000;
  public static final int CYAN = GREEN+BLUE, MAGENTA = RED+BLUE, YELLOW = RED+GREEN;

  // Converts R-G-B values to a single integer
  // See http://www.tayloredmktg.com/rgb/ for RGB color codes
  public static int RGBint (int R, int G, int B) {
    return (R*256*256+G*256+B);
  }
  
  public static void main (String args[]) throws IOException {
    // create a new, "blank" 500 by 300 image
    BufferedImage myimage = new BufferedImage(500,300,BufferedImage.TYPE_INT_RGB);
    
    // See http://www.tayloredmktg.com/rgb/ for RGB color codes
    int goldenrod = RGBint(184, 134, 11);
    int thistle = RGBint(216, 191, 216);
    
    // set the values for the image
    for (int i=0; i<500; i++) {
      for (int j=0; j<300; j++) {
        if (i<50) myimage.setRGB(i,j,BLACK);
        else if (i<100) myimage.setRGB(i,j,WHITE);
        else if (i<150) myimage.setRGB(i,j,RED);
        else if (i<200) myimage.setRGB(i,j,GREEN);
        else if (i<250) myimage.setRGB(i,j,BLUE);
        else if (i<300) myimage.setRGB(i,j,CYAN);
        else if (i<350) myimage.setRGB(i,j,MAGENTA);
        else if (i<400) myimage.setRGB(i,j,YELLOW);
        else if (i<450) myimage.setRGB(i,j,goldenrod);
        else myimage.setRGB(i,j,thistle);
      }
    }

    // store the image in a file
    File outImage = new File("myimage2.jpg");
    ImageIO.write(myimage, "jpg", outImage);
  }
}