The Program requires the ANTLR code with a java visitor file.We will also upload an example code (Assignment 2 Solution). This is to give you a guide. In that folder there is an example of an ANTLR file (.g4 file). It can be opened in text file editor. Anyway...The assignment (Assignment 4) is in two parts. The written part and the programming part. Make sure that the written part is not handwritten, but done in word document. Also, make sure each answer is as clear as possible.