Do the following program in Java:

Write a Java program to implement simple index on primary key for a file of employee records: You should use the switch case statement for the following: Case 1: Implement add() to ask users to enter information about employee records, including their EID, Name, Age, and Rating, store these information to a fixed-length record file. Create an index file at the same time by using EID as primary key and RRN as reference. Case 2: Implement search() by EID using the index file, and display the record on screen if record found, otherwise, display "Record not found!" Case 3: Implement delete() using the index file. Case 4: quit the program