Java is a complex computer language that is used to code software. Just like other languages, a specific pattern means a special thing. For instance, in this case it means Ac. In other scenarios, it can mean a ton of different commands. Developers use this language to code different programs and command the computer to perform a variety of functions.
It allows them to create and solve numerous aspects of computer tech that cannot be solved by the average person without knowledge of this language. The computer is able to interpret these string of commands and perform the appropriate functions accordingly.