This is a small portion of zxing, including only what's required to generate QR codes.
Interface Summary Interface Description WriterThe base class for all objects which encode/generate a barcode image.
Enum Summary Enum Description BarcodeFormatEnumerates barcode formats known to this package. EncodeHintTypeThese are a set of hints that you may pass to Writers to specify their behavior.
Exception Summary Exception Description ChecksumExceptionThrown when a barcode was successfully detected and decoded, but was not returned because its checksum feature failed. FormatExceptionThrown when a barcode was successfully detected, but some aspect of the content did not conform to the barcode's format rules. ReaderExceptionThe general exception class throw when something goes wrong during decoding of a barcode. WriterExceptionA base class which covers the range of exceptions which may occur when encoding a barcode using the Writer framework.