Simplified Java and C++ code to remove unnecessary `this`, also improving consistency with other field assignments, enabled by a local variable renaming in commit 67c62461d3.

cpp/QrCode.cpp

@@ -351,7 +351,7 @@ QrCode::QrCode(int ver, Ecc ecl, const vector<uint8_t> &dataCodewords, int msk)
 	}
 	if (msk < 0 || msk > 7)
 		throw std::logic_error("Assertion error");
-	this->mask = msk;
+	mask = msk;
 	applyMask(msk);  // Apply the final choice of mask
 	drawFormatBits(msk);  // Overwrite old format bits
 	

java/src/main/java/io/nayuki/qrcodegen/QrCode.java

@@ -263,7 +263,7 @@ public final class QrCode {
 		drawFunctionPatterns();
 		byte[] allCodewords = addEccAndInterleave(dataCodewords);
 		drawCodewords(allCodewords);
-		this.mask = handleConstructorMasking(msk);
+		mask = handleConstructorMasking(msk);
 		isFunction = null;
 	}