Golang programing language provides built-in suport for base64 encoding. The base64 functions are available into the
encoding/base64 package. It provides implementations for both Standard, with or without padding and Filename safe Base64 encoding variant.
The abstract keyword is used in Java for abstraction. The abstraction is the process of selecting data and displaying only the relevant details to the
object. If helps to reduce the programing complexity and the efort.
Keywords are special words in the programing language which have reserved use in the language.
Keywords may not be used as identifiers in Java; for example you cannot declare a field whose name is a keyword.