C programming

Getchar putchar scanf printf functions

getchar(): This function is used to read a single character from the standard input (keyboard) and returns it as an integer value.

putchar(): This function is used to write a single character to the standard output (console) and returns the character written as an unsigned char cast to an int.

scanf(): This function is used to read formatted input from the standard input (keyboard). It takes a format string and a list of pointers to variables where the input values will be stored.

printf(): This function is used to print formatted output to the standard output (console). It takes a format string and a list of values to be formatted and printed.

Program:

                            #include <stdio.h>

int main() {
    char inputChar;

    // Using getchar to read a character from the user
    printf("Enter a character: ");
    inputChar = getchar();

    // Incrementing the ASCII value of the character by 1
    inputChar++;

    // Using putchar to print the modified character
    printf("Modified character: ");
    putchar(inputChar);

    // Using scanf to get an integer from the user
    int num;
    printf("\nEnter an integer: ");
    scanf("%d", &num);

    // Using printf to print the entered integer
    printf("Entered integer: %d\n", num);

    return 0;
}

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With supporting text below as a natural lead-in to additional content.

Q1. A variable name can have ?

A. Any special symbol

B. Blank space

C. Comma ( , )

D. Underscore

Q2. Which pair of symbols is used to define the scope of functions, loops, and other code blocks in C?

A. ( )

B. { }

C. [ ]

D. < >

Getting Started With C

Getchar putchar scanf printf functions

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