B

Task/Bitmap/Java/bitmap-1.java

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+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+
+public class BasicBitmapStorage
+{
+ private BufferedImage image;
+
+ public BasicBitmapStorage(final int width, final int height)
+ {
+  image = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
+ }
+
+ public void fill(final Color c)
+ {
+  Graphics g = image.getGraphics();
+  g.setColor(c);
+  g.fillRect(0, 0, image.getWidth(), image.getHeight());
+ }
+
+ public void setPixel(final int x, final int y, final Color c)
+ {
+  image.setRGB(x, y, c.getRGB());
+ }
+
+ public Color getPixel(final int x, final int y)
+ {
+  return new Color(image.getRGB(x, y));
+ }
+
+ public Image getImage()
+ {
+  return image;
+ }
+}

Task/Bitmap/Java/bitmap-2.java

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+import java.awt.Color;
+import junit.framework.TestCase;
+
+public class BasicBitmapStorageTest extends TestCase
+{
+ public static final int WIDTH = 640, HEIGHT = 480;
+
+ BasicBitmapStorage bbs = new BasicBitmapStorage(WIDTH, HEIGHT);
+
+ public void testHappy()
+ {
+  bbs.fill(Color.cyan);
+  bbs.setPixel(WIDTH / 2, HEIGHT / 2, Color.BLACK);
+  Color c1 = bbs.getPixel(WIDTH / 2, HEIGHT / 2);
+  Color c2 = bbs.getPixel(20, 20);
+  assertEquals(Color.BLACK, c1);
+  assertEquals(Color.CYAN, c2);
+ }
+}