A function of a library management system permissions, please correct me.

LibraryManagement\LibraryManagement\bak\BookAdd.java~1~
.................\.................\...\BookAdd.java~2~
.................\.................\...\BookAdd.java~3~
.................\.................\...\BookAdd.java~4~
.................\.................\...\BookAdd.java~5~
.................\.................\...\BookAdd.java~6~
.................\.................\...\BookAdd.java~7~
.................\.................\...\BookAdd.java~8~
.................\.................\...\BookAdd.java~9~
.................\.................\...\BookDelete.java~1~
.................\.................\...\BookDelete.java~2~
.................\.................\...\BookDelete.java~3~
.................\.................\...\BookList.java~1~
.................\.................\...\BookList.java~2~
.................\.................\...\BookList.java~3~
.................\.................\...\BookModify.java~1~
.................\.................\...\BookModify.java~2~
.................\.................\...\BookModify.java~3~
.................\.................\...\BookModify.java~4~
.................\.................\...\BookModify.java~5~
.................\.................\...\BorrowBook.java~1~
.................\.................\...\BorrowBook.java~2~
.................\.................\...\BorrowBook.java~3~
.................\.................\...\BorrowBook.java~4~
.................\.................\...\BorrowBook.java~5~
.................\.................\...\BorrowBook.java~6~
.................\.................\...\BorrowBook.java~7~
.................\.................\...\BorrowBook.java~8~
.................\.................\...\BorrowBook.java~9~
.................\.................\...\BorrowBookList.java~1~
.................\.................\...\BorrowBookList.java~2~
.................\.................\...\BorrowBookList.java~3~
.................\.................\...\BorrowInfo.java~1~
.................\.................\...\BorrowInfo.java~2~
.................\.................\...\BorrowInfo.java~3~
.................\.................\...\BorrowInfo.java~4~
.................\.................\...\BorrowInfo.java~5~
.................\.................\...\DataBaseManager.java~1~
.................\.................\...\DataBaseManager.java~2~
.................\.................\...\DataBaseManager.java~3~
.................\.................\...\DataBaseManager.java~4~
.................\.................\...\MainFrame.java~1~
.................\.................\...\MainWindow.java~13~
.................\.................\...\MainWindow.java~14~
.................\.................\...\MainWindow.java~15~
.................\.................\...\MainWindow.java~16~
.................\.................\...\MainWindow.java~17~
.................\.................\...\MainWindow.java~18~
.................\.................\...\MainWindow.java~19~
.................\.................\...\MainWindow.java~20~
.................\.................\...\MainWindow.java~21~
.................\.................\...\MainWindow.java~22~
.................\.................\...\ReturnBook.java~1~
.................\.................\...\ReturnBook.java~2~
.................\.................\...\ReturnBook.java~3~
.................\.................\...\ReturnBook.java~4~
.................\.................\...\ReturnBook.java~5~
.................\.................\...\ReturnBook.java~6~
.................\.................\...\ReturnInfo.java~1~
.................\.................\...\ReturnInfo.java~2~
.................\.................\...\ReturnInfo.java~3~
.................\.................\...\ReturnInfo.java~4~
.................\.................\...\ReturnInfo.java~5~
.................\.................\...\UserAdd.java~1~
.................\.................\...\UserAdd.java~2~
.................\.................\...\UserAdd.java~3~
.................\.................\...\UserAdd.java~4~
.................\.................\...\UserAdd.java~5~
.................\.................\...\UserAdd.java~6~
.................\.................

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