getchar() to read one character from keyboard

#include <stdio.h>
int main(void){
char var;
var = getchar();

printf(" Welcome to  %c",var);
return 0;
}

#include <stdio.h>
int main(void){
char var;
printf( "Do you like C programming ? Press Y or N ");
var = getchar();
  if(var == 'Y')
  {
  printf(" Yes C is very interesting language");
 }
 else
 {
 printf (" Why ? It is easy to learn here, need practice only");
 }
return 0;
}

Example: Reading Multiple Characters

#include <stdio.h>

int main() {
    char ch;
    printf("Enter characters (press q to quit):\n");
    while ((ch = getchar()) != 'q') {
        printf("You entered: %c\n", ch);
    }
    return 0;
}

Example: Handling Whitespace Characters

#include <stdio.h>

int main() {
    char ch;
    printf("Enter text (includes spaces): ");
    while ((ch = getchar()) != '\n') {
        printf("%c", ch);
    }
    return 0;
}

Example 2: Reading Characters in a Loop

This example reads characters from user input until the newline character is entered.

#include <stdio.h>

int main() {
    char ch;
    printf("Enter characters (press Enter to stop):\n");
    
    while ((ch = getchar()) != '\n') {
        printf("You entered: %c\n", ch);
    }
    
    return 0;
}

Enter characters (press Enter to stop):
H
You entered: H
e
You entered: e
l
You entered: l
l
You entered: l
o
You entered: o

Example 3: Pausing Execution with getchar()

This example uses getchar() to pause program execution until the user presses any key.

#include <stdio.h>

int main() {
    printf("Press any key to continue...\n");
    getchar();  // Wait for a key press
    printf("Program continued.\n");
    
    return 0;
}

Press any key to continue...
Program continued.