delete letter in string c++ code example

Example 1: removing a character from a string in c++

#include<iostream>
#include<algorithm>

using namespace std;
main() {
   string my_str = "ABAABACCABA";

   cout << "Initial string: " << my_str << endl;

   my_str.erase(remove(my_str.begin(), my_str.end(), 'A'), my_str.end()); //remove A from string
   cout << "Final string: " << my_str;
}

Example 2: delete one specific character in string C++

#include <algorithm>
str.erase(std::remove(str.begin(), str.end(), 'a'), str.end());

Example 3: string erase character c++

#include <iostream>
#include <algorithm>
#include <string>
 
int main()
{
    std::string s = "This is an example";
    std::cout << s << '\n';
 
    s.erase(0, 5); // Erase "This "
    std::cout << s << '\n';
 
    s.erase(std::find(s.begin(), s.end(), ' ')); // Erase ' '
    std::cout << s << '\n';
 
    s.erase(s.find(' ')); // Trim from ' ' to the end of the string
    std::cout << s << '\n';
}