2. char

A char type is referred as character data type and is used to store a single character.

This type is 1 byte size (8 bits wide), it's guarantee to store a hole single character on a machine. The character can be lowercase for example 'a' or uppercase for example 'R'.

A character is enclosed in a single quote like 'c' or 'C' or 'A' etc..

Declare and initialize

Here is how to declare and initialize a character :

#include <iostream>

int main() {

    char myChar; // declare a single char
    myChar = 'R'; // initialiaze the single character 

    return 0;
}

Print a character

To print the value of a char :

#include <iostream>

int main() {

    char myChar; // declare a single char
    myChar = 'R'; // initialiaze the single character 

    // print the value of myChar
    std::cout << "The value of myChar = " << myChar << std::endl; 

    return 0;
}

Modify a character

Once initialized a char, we can change it's value again, for example :

Here we change the value of myChar from 'R' to 'a'.

#include <iostream>

int main() {

    char myChar; // declare a single char
    myChar = 'R'; // initialiaze the single character 
    std::cout << "Initial value of myChar = " << myChar << std::endl; 

    myChar = 'a';
    std::cout << "New value of myChar = " << myChar << std::endl; 

    return 0;
}

Character and integer