Written in java is in gui

Hi I want Libary mangement system that I can some basic book mangment in. The program shoud Provide lain or signup using simple Gul and it uaveto use hashmap. The program provid data board that containts all books and thar info The program provide the flowing opperation on the books: insert 6 getl deletersearon qou have to provide it using red/black " itree "BTs" You shoud save the book information. automatic aftor closeing the app The a pplication provide away to buy book for user whome loged in 3) The application have to display the book that user bought. 3) The program shou d mave list o R users for whom intorested in one or more books There will be two entitics in this progrnm :user no book (3) Book containd info of the book using. Some methad book-idinttitlestringaurthorstringisbnlongpublishorstringtotal-pagesintrating.floatpublished-dateStringquantityint (4) User contait info for each user as (1) id int (9) email string (3) password string (i) firskmame string (5) Lastname string (6) age int