find substring after character

Code Example:

#include <iostream>
#include <string>

int main() {
    std::string str = "Hello, World!";
    size_t pos = str.find(",");
    if (pos != std::string::npos) {
        std::string substr = str.substr(pos + 1);
        std::cout << "Substring after comma: " << substr << std::endl;
    }
    return 0;
}

Explanation:

• Include the necessary header files for input/output and string manipulation.
• Define the main function as the entry point of the program.
• Create a string variable "str" and initialize it with the value "Hello, World!".
• Use the find method of the string class to locate the position of the comma within the string. If the comma is found, store its position in the variable "pos".
• Check if the comma is found by comparing the position with std::string::npos, which indicates "not found".
• If the comma is found, use the substr method to extract the substring starting from the position after the comma.
• Output the extracted substring after the comma to the console.
• Return 0 to indicate successful program execution.