Please answer this question quickly

Question

Write a C program to create a file "test2.txt" to store a

text

"Abcdef". Now, read a file "test2.txt" to calculate

how may lower-case characters, upper-case characters, digits and special symbols (except space and new line) are there in the file and display on the

terminal.

Answer 1

#include <stdio.h>

#include <ctype.h>

#include <string.h>

typedef struct _TCharStats

{

char filename[255];

int numDigits;

int numUppercase;

int numLowerCase;

int numSpecialChars;

} * TCharStats;

#define CHAR_STATS_SIZE (sizeof(struct _TCharStats))

int CharStats( TCharStats charStats)

{

int iReturn=0;

char ch;

char filename[255];

/* opens the file */

strcpy(filename,charStats->filename);

FILE * fptr = fopen(charStats->filename,"r");

printf(" opening %s \n",filename);

/* then initializes the result structure by either doing this... */

charStats->numDigits = charStats->numLowerCase = charStats->numSpecialChars= charStats->numUppercase=0;

/* or this...*/

memset(charStats,0,CHAR_STATS_SIZE); /* filename clobbered */

if (fptr!=NULL) /* file open */

{

while (!feof(fptr)) /* while not end-of-file */

{

/* reads 1 character from the file and increments the appropriate statistic */

fscanf(fptr,"%c",&ch);

if (isdigit(ch)) { charStats->numDigits++; }

else

if (isupper(ch)) { charStats->numUppercase++; }

else

if (islower(ch)) { charStats->numLowerCase++; }

else

if (ch!=' ') { charStats->numSpecialChars++; }

} /* while */

fclose(fptr);

}

else /* file open FAIL */

{

printf(" error opening input file \n");

iReturn=-1;

}

strcpy(charStats->filename,filename); /* restores filename */

return(iReturn);

}

void CharStatsReport(TCharStats charStats, char * strMsg)

{

if (strMsg!=NULL)

{

printf("******************************************************************\n");

printf(strMsg);

}

printf("******************************************************************\n");

printf(" file name :> %s < \n" , charStats->filename);

printf(" # of upper case : %d \n",charStats->numUppercase);

printf(" # of lower case : %d \n", charStats->numLowerCase);

printf(" # of digits : %d \n",charStats->numDigits);

printf(" # if special chars : %d \n",charStats->numSpecialChars);

}

main()

{

struct _TCharStats charStats;

printf(" Filename ???? :>");

scanf("%s",charStats.filename);

CharStats(&charStats);

CharStatsReport(&charStats,NULL);

}