Added method for qr code generation according to the user defined dimensions

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

@@ -23,7 +23,11 @@
 
 package io.nayuki.qrcodegen;
 
+import javax.imageio.ImageIO;
+import java.awt.*;
 import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
@@ -311,8 +315,19 @@ public final class QrCode {
 		}
 		return result;
 	}
-	
-	
+
+	public BufferedImage toImage(int width, int height, int scale, int border)
+	{
+		BufferedImage ini = toImage(scale, border);
+		Image tmp = ini.getScaledInstance(200, 200, Image.SCALE_SMOOTH);
+		BufferedImage new_image = new BufferedImage(200, 200, BufferedImage.TYPE_INT_ARGB);
+		Graphics2D g2d = new_image.createGraphics();
+		g2d.drawImage(tmp, 0, 0, null);
+		g2d.dispose();
+		return new_image;
+	}
+
+
 	/**
 	 * Returns a string of SVG code for an image depicting this QR Code, with the specified number
 	 * of border modules. The string always uses Unix newlines (\n), regardless of the platform.