App function:

add, search, delete and exit.

To build a normal app required three steps.

Step 1:

step are required for such app which stores some information.

We have to store the desired information. For this purpose create a user defined datatype i-e PersonInfo class.

Step 2:

Make address book class.

Step 3:

1) The class will contain main() method.

2) Object of AddressBook class.

3) GUI based using switch selection structure.

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Write a Java program using this steps which store item id, name, price, quantity also exp date.