Java code to Generate QR Code and Read QR Code using Camera

Описание

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Libraries: https://drive.google.com/drive/folders/1KUYC4xOPRPO10aq73ngFoTpJQwfK8yKV?usp=share_link

Method:
public void generateQRcode(String data, String path, String charset, Map map, int h, int w) throws WriterException, IOException {

BitMatrix matrix = new MultiFormatWriter().encode(new String(data.getBytes(charset), charset), BarcodeFormat.QR_CODE, w, h);
MatrixToImageWriter.writeToFile(matrix, path.substring(path.lastIndexOf('.') + 1), new File(path));
}
-----------------------------------------------------------------------------------------
CAMERA CODE
Webcam webcam = Webcam.getDefault(); //Generate Webcam Object
webcam.setViewSize(new Dimension(320,240));
WebcamPanel webcamPanel = new WebcamPanel(webcam);
webcamPanel.setMirrored(false);
JFrame jFrame = new JFrame();
jFrame.add(webcamPanel);
jFrame.pack();
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jFrame.setLocationRelativeTo(null);
jFrame.setVisible(true);

do{
try {
BufferedImage image = webcam.getImage();
LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result = new MultiFormatReader().decode(bitmap);
if(result.getText() != null){
JOptionPane.showMessageDialog(null, result.getText(), "INFORMATION", JOptionPane.INFORMATION_MESSAGE);
jFrame.setVisible(false);
jFrame.dispose();
webcam.close();
break;
}

} catch (Exception e) {
}
}while(true);

Java Introductory Programming Tutorial
1. Programming Tutorial 1 - Introduction to Java, Netbeans IDE, and Hello World #java https://youtu.be/hYHwbTCzLq0
2. Java Programming Tutorial 2 - Java Variable https://youtu.be/k37j_1RYTnQ
3. Java Programming Tutorial 3 - 8 Primitive Data Types https://youtu.be/20T1FUfZFmE
4. Java Programming Tutorial 4 - Java Type Casting https://youtu.be/oaPC2L41Ckk
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10. Java Programming Tutorial 10 - Java Switch statement https://youtu.be/qFUH5zHKbuA
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