C Programming Tutorial - 66: The getchar() and putchar() Functions

In this tutorial we'll see how we can use the getchar() function to receive single character input and how we can display characters using the putchar() function.

[blazekazama]

Thanks! In the first second of your video, I understood how they are used by how you arranged the program. I cannot express how terribly they explained it at my college.. 

[bencilbusher]

This is why I love Indians. Great food, Konnakol and programming help.

[adnanaadil]

8 years later still watching this video

[gudukasa]

#include <stdio.h>
main()
{
 char ch;
 printf("Enter a character:");
 ch = getchar();
 printf("The character entered is:");
putchar(ch);

}

Here is the code

[AbhishekSharma-xmfi]

In c=getchar() it is easier to take input of characters more than 1 bit like a sentence and print it using putchar(c). All u have to do is instead of declaring char C declare int c.

[Sobioytccc]

Getchar is to get a first character from a stream of characters. Not from user input. To be more precise.

[RecycleBin]

putchar does not add a null terminator character (\0) because tis a *char* as the name suggests, printf/puts does because those are *string* functions, not *char* functions. Some things are easier to do by using single chars rather than strings because the null terminator may or may not cause problems by string I mean an aray of characters, arrays decay into constant pointer variables.

[anng]

Your tutorials are amazing, I understand everything because of you, bless u,

[kavinj]

Simply well explained. Thank u bradr
😊

[diprajrane]

9 Years later still watching this video

[vakhariyajay]

Thank you very much. You are a genius. 👍👍🔝🔝

[GrandNecro]

ch should be an int to check for EOF, which is a negative value.

[bartlomiejodachowski]

Should pressing enter after getchar function be necessary? How can I make it without pressing enter? Do I need new library?

[jacksmack]

I been trying to use visual studio to run this code but sadly it doesn't work. What program are you using?

[adsaikiranreddy]

Sir, is it possible to give inputs with out scanf command

[fahad]

We can do the same using scanf() and printf(). So is there a difference between their usage based on your example?

[alex]

Why would i use getchar and putchar ? Like i understand what they are doing but why would i use them and i have printf scanf etc.

[supreetak]

Is this the syntax for putchar() and get char()

[billstanard]

Very nice! Thank you. What IDE are you using? I am having a problem running this short example in Eclipse on a Windows 7 machine.

Bill

[alxbudn]

very bad you didnt talk about how the buffer stores chars