C Programming Tutorial - 32 - A Few Cool Character Functions

[SincerelyVince]

ASCII is the system used to link numbers to characters, allowing you to use them interchangably. UTF-8, which is the system we now use, includes ASCII. If you're interested in learning more about this stuff, ASCII is the keyword you're looking for

[lovemakehurts]

u r talented bro, i got much from your tuna tutorial lol

[barasanathan]

Switch maybe confused with "if....greatwork mr

[thestalks]

why cant they have algebra classes like this.... with syntax n all.

[abdullahkhalid]

In some of the other tutorials that I was watching about programming on youtube they used cout instead of printf and cin instead of scanf.
do they both do the same thing?

[dakadoodle]

SO important to get this down lmao C can be the dumbest or smartest language depending on the and thats why I still refer back to these vids, cause im a dummy.

[shaikhrezwanrafidahmad]

Okay, so I wanted to spice things up a bit by actually asking the user for an input using scanf. It compiled successfully, and it also ran. But whenever I give 55, let's say it says its a digit. But in the same program if i give a letter it says "J is an alphabet"
Anyway, here's my code
Is there a way to fix it? So that, when I give lets say a number 5 it will say '' 5 is a digit' and when i input "a" it'll say, '"a is an alphabet" simultaneously?

int main()
{
int x;
printf("**Digits and Integer Separator** \n");
printf("Enter digit/number: ");
scanf(" %d", &x);

if(isalpha(x))
{

printf("\n %c is an alphabet \n", x);
}
else
{
if(isdigit(x))
{

printf(" %d is a digit \n", x);

}
else
{
printf(" Unknown \n ");
}
return 0;
}

[volo]

When using codeblocks, i am able to compile and run programs without the return statement in the main method as well as leaving out all preprocessor files. Why?

[farheendewan]

tuna bacon tuna bacon tuna bacon :P
bwahahahahahahahahahahahaha :P
u rock :3

[ehsanehsh]

if they can be used interchangeably why when we type %d instead of %c for testing a digit, for example for int tuna='7', the answer is something weird! 4200656 is a digit?!!! tnx for your help

[mohammedfawaz]

A very important question, even when i delete the <ctype.h> I still can mix int and char in definition, so what's up?
and why when I define something as char for example but %c in scanf it gives wrong result? I thought c.type will allow me to do it vice versa?

[rayane]

Mine is :



int main()

{
char grade;
printf("enter your grade : ");
scanf(" %c", &grade);

switch(grade){
case 'A' : printf("ok");
break;
case 'B' : printf("nope");
break;
case 'C' : printf("lmao");
break;
case 'D' : printf("lmfao");
break;
case 'F' :
break;
default : printf("you're wrong");
}
return 0;
}

[rban]

Characters are the most primitive integer type

[rohitkumar-rbds]

Can't i assign a two digit integer or three digit to the value of tuna as we gave '9'.

[nibir]

when I test digit (i.e 2, 3, 9, 5) i get a strange sign like "@" instead of that number on printf output. but incase of letter or other symbols it does not happen.

[psygrimlock]

Do you have a video covering Classes and Methods in C?

[damithjay]

guy hep me figure out whts wrong!. even if i define the variables as int type, still only "single quotes" if block gets executed. isupper method is from the next video(33)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>


int main()
{
int A = 'A';
int AA = "A";

if (isupper(A)){
printf("single quoted");
}
if (isupper(AA)){
printf("double quoted");
}
return 0;
}

[cityvoyage]

so can you please make a program to tell us how computer works?

[abhaykd]

"isdigit" doesnt works with 2 or more digit number..!!! thnx for ur help..

[ventin]

What is the difference between int tuna = 9 and int tuna ="9"?