ways to declare a string c++ code example

Example 1: how can make string value in cpp

#include <string>
string hello= "hello you thre :)";

Example 2: declaring strings c++

std::string str = "hello world"; 
char *str = "hello world";
char str[] = "hello world"; 
char str[11] = "hello world";

Example 3: c++ write string

#include <iostream>

int main() {
	std::cout << "Hello" << std::endl; //endl = end line/new line
    // or
    printf("hello");
    
}