Clarified and simplified some code.

src/io/nayuki/fastqrcodegen/QrCode.java

@@ -185,8 +185,8 @@ public final class QrCode {
 		BufferedImage result = new BufferedImage((size + border * 2) * scale, (size + border * 2) * scale, BufferedImage.TYPE_INT_RGB);
 		for (int y = 0; y < result.getHeight(); y++) {
 			for (int x = 0; x < result.getWidth(); x++) {
-				boolean val = getModule(x / scale - border, y / scale - border);
+				boolean color = getModule(x / scale - border, y / scale - border);
-				result.setRGB(x, y, val ? 0x000000 : 0xFFFFFF);
+				result.setRGB(x, y, color ? 0x000000 : 0xFFFFFF);
 			}
 		}
 		return result;

src/io/nayuki/fastqrcodegen/QrCodeGeneratorDemo.java

@@ -28,11 +28,9 @@ package io.nayuki.fastqrcodegen;
 
 import java.awt.image.BufferedImage;
 import java.io.File;
-import java.io.FileOutputStream;
 import java.io.IOException;
-import java.io.OutputStreamWriter;
-import java.io.Writer;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
 import java.util.Arrays;
 import java.util.List;
 import javax.imageio.ImageIO;
@@ -64,11 +62,8 @@ public final class QrCodeGeneratorDemo {
 		ImageIO.write(img, "png", imgFile);             // Write image to file
 		
 		String svg = qr.toSvgString(4);  // Convert to SVG XML code
-		try (Writer out = new OutputStreamWriter(
+		Files.write(new File("hello-world-QR.svg").toPath(),
-				new FileOutputStream("hello-world-QR.svg"),
+			svg.getBytes(StandardCharsets.UTF_8));
-				StandardCharsets.UTF_8)) {
-			out.write(svg);  // Create/overwrite file and write SVG data
-		}
 	}
 	
 	

src/io/nayuki/fastqrcodegen/QrTemplate.java

@@ -174,7 +174,8 @@ final class QrTemplate {
 		// Draw two copies
 		for (int i = 0; i < 18; i++) {
 			int bit = (bits >>> i) & 1;
-			int a = size - 11 + i % 3, b = i / 3;
+			int a = size - 11 + i % 3;
+			int b = i / 3;
 			darkenFunctionModule(a, b, bit);
 			darkenFunctionModule(b, a, bit);
 		}