Read the ./Java_supporting.txt of ths repo and then try to read the codes and syntex here.
This is my java codes set. If you have any inquary or dout or problems, then contact me to solve thems. Via my another E-mail: krishnendumitra24@gmail.com ,I am try to update or add the new codes time to time. Basically i put here very commonly use java codes which is required for complete our graduation.