I need answer question pls Project Operations Write a JAVA program that will maintain a phone directory using a Linked-List. The program should be able to perform the following operations: 1) Add persons details (first name, last name, phone number, city, address, sex and email) to the phone directory, where phone numbers in the directory have to be unique. (Note: each person record will store in one node in the linked-list and insert each person to the last) 2) Delete any person details by a given phone number. 3) Update telephone number by providing person first name. 4) Display all details of persons from a phone directory. 5) Search telephone number based on person first name. (Note: use sequential search to find all telephones for the given first name) 6) Sort all persons in the phone directory ascending based on person first name. (Note: use bubble or selection sort to arrange the entire phone directory) Project Outputs The output has to display a menu of choices. Then the user can select which operation want to perform. Also, you can use the method System.exit(0); to exit the program. The menu of choices will be: 1) Add person details into the telephone book. 2) Remove a person from the telephone book. 3) Update a telephone number by providing person first name. 4) Display the entire telephone book. 5) Search a telephone number based on person first name. 6) Exit the program.

I need answer question pls Project Operations Write a JAVA program that will maintain a phone directory using a Linked-List. The program should be able to perform the following operations: 1) Add persons details (first name, last name, phone number, city, address, sex and email) to the phone directory, where phone numbers in the directory have to be unique. (Note: each person record will store in one node in the linked-list and insert each person to the last) 2) Delete any person details by a given phone number. 3) Update telephone number by providing person first name. 4) Display all details of persons from a phone directory. 5) Search telephone number based on person first name. (Note: use sequential search to find all telephones for the given first name) 6) Sort all persons in the phone directory ascending based on person first name. (Note: use bubble or selection sort to arrange the entire phone directory) Project Outputs The output has to display a menu of choices. Then the user can select which operation want to perform. Also, you can use the method System.exit(0); to exit the program. The menu of choices will be: 1) Add person details into the telephone book. 2) Remove a person from the telephone book. 3) Update a telephone number by providing person first name. 4) Display the entire telephone book. 5) Search a telephone number based on person first name. 6) Exit the program.