case study: random access file

to illustrate C++ generic classes and inheritance

• show a simple menu
• create class Database
• make Database generic
• overload operator>> for Personal
• add 1st field "SSN" for Personal
• overload operator<< for Personal
• print Personal
• input database file name
• open database file
• write to database file
• print database file
• add 2nd field "name" for Personal
• add 3rd field "city" for Personal
• add 4th field "year" for Personal
• add 5th field "salary" for Personal
• find record by SSN
• modify a record
• subclass Student

ch 1.10 CASE STUDY: RANDOM ACCESS FILE p35 of