Need help.

[JohnnyC]

So I made this program, its purpose should be to for example I write a text and It needs to see how many words there are, how many vowels and so on...

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

int main ()
{
int i, length=0, count=0,length2=0,vowel=0,constan=0,num=0,sign=0;

char hi[800];
char hey[800];
fgets (hi,800,stdin);

printf("%s", hi);

length= strlen(hi);

printf("\nlength = %d",length);

for (i=0; i<length; i++)
{
    if (hi[i] == ' ') 
    {
    count++;
    }
    if (hi[i] !=' ')
    {
    hey[i]=hi[i];    
    }
}

length2=strlen(hey);
printf("\nString hey  %s",hey);

printf("\nlength 2= %d",length2);

++count;
printf("\nNumber of words :%d",count);

for (i=0; i<length2; i++)
{
    if (hey[i] == 'a' || hey[i] == 'e'||hey[i] == 'i'||hey[i] == 'o'||hey[i] == 'u')
        {
        ++vowel;
        }
    else    
        {
        ++constan;
        }
}
for (i=0; i<length2; i++)
{
    if(hey[i]>'0'&&hey[i]<'9')
        {
        ++num;
        }
    if(hey[i] == '!' || hey[i] == ','||hey[i] == '?'||hey[i] == '('||hey[i] == ')'||hey[i] == '‘'||hey[i] == '“')
        {
        ++sign;    
        }
}

printf("\nNumber of Vowels: %d",vowel);
printf("\nNumber of Consonants: %d",constan);
printf("\nNumber of numbers .-.:%d",num);
printf("\nNumber of signs: %d",sign);
printf("\n");
}

Now this here

for (i=0; i<length; i++)
{
    if (hi[i] == ' ') 
    {
    count++;
    }
    if (hi[i] !=' ')
    {
    hey[i]=hi[i];    
    }
}

length2=strlen(hey);
printf("\nString hey  %s",hey);

printf("\nlength 2= %d",length2);

Well I was hoping that it would create a string where there are no whitespace that is ' ', but everytime I run the program, the string hey just has few characters, why isnt every character except the ' ' from the first string saved in the other?

Here is the text you can copy paste for the stdin, as an example (at small words, numbers its works ok I guess):

"Computer programming (often shortened to programming) is a process that leads from an original formulation of a computing problem to executable computer programs."

[john.c]

You can't just transfer the characters from hi to the exact same offset of hey since hey is not a copy of hi, but is missing characters (spaces). So you need to keep track of its offset separately:

int j = 0;
for (int i = 0; i < length; i++)
    if (hi[i] == ' ')
        count++;
    else                 // use an else (don't test opposite condition)
        hey[j++] = hi[i];
hey[j] = '\0'; // remember to zero terminate the string

[JohnnyC]

Thank you