In C, character variables are defined using the char keyword, which can only store a single character. Single quotes are used for assignment, and escape sequences can be used to represent special characters.
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Definition of character variables in C
Character variables are variable types used to store single characters. In C, you can use the char keyword to define a character variable.
Grammar:
char variable_name;
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For example:
char ch = 'A';
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Features:
- Character variables can only store one character.
- The default value of character variables is the null character ('\0').
- Character variables can use single quotes or double quotes when assigning values, but single quotes are recommended.
- Character variables can use escape sequences to represent special characters, such as '\n' to represent a newline character.
Operation:
- You can use the assignment operator (=) to assign a value to a character variable.
- You can use the input and output operators (<< and >>) to read or output characters from the console.
- Character variables can be compared using comparison operators (==, !=, <, <=, >, and >=).
Note:
- Character variables can only store characters with ASCII code values between 0 and 255.
- You cannot directly assign a string to a character variable because the string is a character array.
Sample code:
#include <iostream>
int main() {
char ch;
std::cout << "Enter a character: ";
std::cin >> ch;
std::cout << "The character you entered is: " << ch << std::endl;
return 0;
}
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