C++ Program To Implement String II

 

New Function size() & length() :-

' size() ' & ' length() ' working of both the function are same i.e. to know the string size.

string s1 = "Dummy Input";
cout << s1.size() <<endl;

string s2 = "Dummy Output";
cout << s2.length();

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New Function insert() :-

This function is used to insert string in the existing string.

string s = "Duy Input";
    
s.insert(2,"mm");
cout << s;

Dummy Input

New Function substr() :-

To print substring of a given string substring is used (we have to input starting index and how many character we want to print).

string s = "Dummy Input";
    
cout << s.substr(6,2);    //It will print 2 chars from 6th index

In

New Function begin(), end() & sort() :-

" sort() " is a inbuilt function to sort the given string and " begin() " function tells the first character of the string where as " end() " is tells the last character of the string.

string s = "zyxw";
    
cout << "Unsorted string: " << s <<< endl;
  
sort (s.begin (), s.end ());  //function for sorting the string
  
cout << "Sorted string is: " << s;

Unsorted string: zyxw

Sorted string is: wxyz

New Function stoi() & to_string() :-

To convert string into integer " stoi() " function is used and to convert integer into string " to_string() " function is used.

string s = "140";

int x = stoi (s); //storing the converted integer value in x

cout << x + 3;

143

int x = 143;

string s = to_string (x); //storing the converted string in s

cout << s + '2';

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