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public void circleSimple(int xCenter, int yCenter, int radius, Color c) { int pix = c.getRGB(); int x, y, r2; r2 = radius * radius; for (x = -radius; x <= radius; x++) { y = (int) (Math.sqrt(r2 - x*x) + 0.5); raster.setPixel(pix, xCenter + x, yCenter + y); raster.setPixel(pix, xCenter + x, yCenter - y); } }