Explain the Character operations in C language

Character can be (A-Z(or) a- z), digit (0-9), a white space, or a special symbol in C programming language.

Declaration

Following is the declaration for character operations in C programming −

char a= ‘A’; using a character constant.

Character input / output functions

The character input/output functions are explained below −

Example − char a;

scanf("%c", &a); printf ("%c", &a); a = getchar ( ); putchar (a); a = getch ( ); putch (a);

Example

Following is the C program for line counting using getchar() −

 Live Demo

#include <stdio.h> /* count lines in input */ main(){    int count, num;    printf("enter multiple statements and Press cntrl+z:
");    num = 0;    while ((count = getchar()) != EOF)       if (count == '
')       ++num;    printf("%d
", num); }

Output

Following is the output of the program −

enter multiple statements and Press cntrl+z: Hi Hello Welcome To My World ^Z 4