FIB payments SDK
· fib_payment_sdk is created to allow you to integrate FIB as a convenient payment method within your application. and make it easier to add in-app payments to your android application.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window fib_payment_sdk-1.1.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.