Creating a QR Code using ZXING

ZXingTest.java

import java.io.FileOutputStream;
import java.io.IOException;

import org.junit.Test;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Writer;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;

public class ZXingTest {
  @Test
	public void createQRCodeToStream() throws WriterException, IOException {
		final Writer w = new QRCodeWriter();
		final BitMatrix bitMatrix = w.encode("http://www.trajano.net",
				BarcodeFormat.QR_CODE, 200, 200);
		final FileOutputStream stream = new FileOutputStream("foo.png");
		MatrixToImageWriter.writeToStream(bitMatrix, "png", stream);
	}
}