C++Define a class called MyString.MyString should contain a Menu as follow: My first MyString MenuOption Cost=======================================1. Create a substring $5 2. Find a reference $10 3. Remove part of the string $7 4. Add two strings to each other $4 5. Check if a string is empty $1 6. Check if two strings are equal $6 7. Insert a string inside another string $3 8. Exit The user will enter two strings str1 and str2 and should be able to keep selecting options until option 8 is selected (exit). After each selection the cost amount will change. At the end of each selection you should print out the result and at the end printout the following:Your total cost is: $15 (or whatever is the sum) (Hint: for the functions use table 1 and table 2)Table 1 EXAMPLEstrl + str2str.insert(pos,str2)str.remove(pos, length)Comparisonsstr1== str2 str1 != str2str1 str2str1 <= str2 strl >= str2str.find(str1)str.find(str1, pos)str.find_first_of(str1, pos)str.find_first_not_of(str1, pos)REMARKSReturns a string that has str2's data concatenated to theend of strl's data. The size is set appropriately.Inserts str2 into str beginning at position pos.Removes substring of size length, starting at position pos.Compare for equality or inequality; returns a Boolean value.Four comparisons. All are lexicographical comparisons.Returns index of the first occurrence of str1 in str.Returns index of the first occurrence of string str1 in str;the search starts at position pos.Returns the index of the first instance in str of any characterin str1, starting the search at position pos.Returns the index of the first instance in str of any characternot in str1, starting search at position pos. EXAMPLEConstructorsstring str;string str("string");string str(aString);Element accessstr[i]str.at (i)str.substr(position, length)Assignment/Modifiers: str2;str1 =strl + str2;str.empty()REMARKSDefault constructor; creates empty string object str.Creates a string object with data "string".Creates a string object str that is a copy of aString.aString is an object of the class string.Returns read/write reference to character in str at index i.Returns read/write reference to character in str at index i.Returns the substring of the calling object starting at posi-tion and having length characters.Allocates space and initializes it to str2's data, releasesmemory allocated for str1, and sets strl's size to that ofstr2.Character data of str2 is concatenated to the end of str1;the size is set appropriately.Returns true if str is an empty string; returns falseotherwise.

- We have to work on the MyString class for the string functions.

Answered: C++ Define a class called MyString.…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

C++

Define a class called MyString.

MyString should contain a Menu as follow:

My first MyString Menu

Option Cost

=======================================

1. Create a substring $5

2. Find a reference $10

3. Remove part of the string $7

4. Add two strings to each other $4

5. Check if a string is empty $1

6. Check if two strings are equal $6

7. Insert a string inside another string $3

8. Exit

The user will enter two strings str1 and str2 and should be able to keep selecting options until option 8 is selected (exit). After each selection the cost amount will change. At the end of each selection you should print out the result and at the end printout the following:

Your total cost is: $15 (or whatever is the sum)

(Hint: for the functions use table 1 and table 2)

Table 1

EXAMPLE
strl + str2
str.insert(pos,
str2)
str.remove(pos, length)
Comparisons
str1== str2 str1 != str2
str1<str2
str1> str2
str1 <= str2 strl >= str2
str.find(str1)
str.find(str1, pos)
str.find_first_of(str1, pos)
str.find_first_not_of
(str1, pos)
REMARKS
Returns a string that has str2's data concatenated to the
end of strl's data. The size is set appropriately.
Inserts str2 into str beginning at position pos.
Removes substring of size length, starting at position pos.
Compare for equality or inequality; returns a Boolean value.
Four comparisons. All are lexicographical comparisons.
Returns index of the first occurrence of str1 in str.
Returns index of the first occurrence of string str1 in str;
the search starts at position pos.
Returns the index of the first instance in str of any character
in str1, starting the search at position pos.
Returns the index of the first instance in str of any character
not in str1, starting search at position pos.

EXAMPLE
Constructors
string str;
string str("string");
string str(aString);
Element access
str[i]
str.at (i)
str.substr(position, length)
Assignment/Modifiers
: str2;
str1 =
strl + str2;
str.empty()
REMARKS
Default constructor; creates empty string object str.
Creates a string object with data "string".
Creates a string object str that is a copy of aString.
aString is an object of the class string.
Returns read/write reference to character in str at index i.
Returns read/write reference to character in str at index i.
Returns the substring of the calling object starting at posi-
tion and having length characters.
Allocates space and initializes it to str2's data, releases
memory allocated for str1, and sets strl's size to that of
str2.
Character data of str2 is concatenated to the end of str1;
the size is set appropriately.
Returns true if str is an empty string; returns false
otherwise.

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