String & String ID C++ (inheritance)

Project with base class String and his successor String_ID, using to work with strings.
Running menu.cpp programm will create array with type of based class (String) to store String_ID objects. Menu has 15 actions to work with strings.

Example of using some actions from menu

• Add string hello to array. Program will create this string with id=1:

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Menu:
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1. Create an empty string.
2. Create copy of string by ID.
3. Create string from input string.
4. Create string from input symbol.
5. (=) Equate strings by ID
6. (+) Add string n1 + string n2.
7. (-) Subtract string n1 from string n2.
8. (>) String n1 > than string n2.
9. (<) String n1 < than string n2.
10. Convert string to lowercase.
11. Convert string to uppercase.
12. Find first entry of element X to string.
13. Delete element by ID.
14. Get all strings.
15. Exit.

        Select your choice: 3

Write string: hello

Strings:

N(1)=hello

• Create copy from used string:

        Select your choice: 2

Write a ID of string for copy:
ID=1

Strings:

N(1)=hello
N(2)=hello

• Add string with id=1 to string with id=2 (it will create new string with id=3):

        Select your choice: 6

Add string1 to string2
ID=1

ID=2

Strings:

N(1)=hello
N(2)=hello
N(3)=hellohello