![]() ![]() Modules are arranged in the row and columns that are called Data Matrix. QR code is made up of modules (black and white squares) that contain the encoded data. The Quick Response system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. These standard encodings modes store data effectively. It uses the following four standardized encoding modes: ![]() It is used to store information such as text, webpage, URL, etc. We need not to carry any handheld device for scanning. The advantage of a QR code is that it can be scanned by smartphones. The grid arrangement of the black squares on a white background that can be read by an imaging device is called a QR code. In this section, we will learn how to generate and read QR code in Java by using the ZXing library. Nowadays, it's being used a lot in every field such as GEO location, on products, vehicle tracking, etc. It contains the matrix of small squares in which information is stored. It is an alternative to bar code or we can say that it is a two-dimensional bar-code. The QR code is shortened for Quick Response code. ![]()
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