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#include <stdio.h> #include <stdlib.h> #include <string.h> #include<ctype.h> #define MAX_LEN 255 int numWords(char *str); int numDigit(char *str);...

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

#define MAX_LEN 255

int numWords(char *str);
int numDigit(char *str);
int numUppltr(char *str);
int numLwrltr(char *str);
int punChar(char *str);
char*readString(char *str);

int main()
{
char givString[MAX_LEN];

puts("Enter your string(Max 255 characters):");
//readString(givString);
gets(givString);

printf("\nnumber of words :%d",numWords(givString));
printf("\nnumber of uppercase letters %d",numUppltr(givString));
printf("\nnumber of lowercase letters %d",numLwrltr(givString));

printf("\nnumber of punctuations %d\n",punChar(givString));

printf("\nnumber of digits:%d\n",numDigit(givString));
system("pause");
return 0;
}

char *readString(char *str)
{
int ch, i=0;
while((ch=getchar())!=EOF && ch!='\n')
{
if(i)
{
str[i]=ch;
i++;

}
str[i] = '\0';
}

return str;

}
int numUppltr(char *str)
{
int Upltr=0;
while(*str)
{
if(*str>='A' && *str<='Z')
{
Upltr++;

}
str++;
}
return Upltr;
}
int numLwrltr(char *str)
{
int lwrltr=0;
while(*str)
{
if(*str>='a' && *str<='z')
{
lwrltr++;
}
str++;
}
return lwrltr;
}
int punChar(char*str)
{
int count=0,i=0;
while(str[i])
{
if(ispunct(str[i]))
count++;
i++;

}
return count;

}
int numWords(char*str)
{
int wordcount=1,i=0;
while(str[i])
{
if(str[i]==' ')
++wordcount;
i++;


}
return wordcount;
}
int numDigit(char *str)
{
int digitcount=0;
while(*str)
{
if(*str>='0' && *str<='9')
{
digitcount++;
}
str++;

}
return digitcount;
}

Please I want to modify the above program Instead of reading data from the keyboard, get the data from a file. Ask the user for the filename.

engineering   Computer-Science   
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Homework Answers

Answer #1

The updated source code is given below:

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

#define MAX_LEN 255

int numWords(char *str);
int numDigit(char *str);
int numUppltr(char *str);
int numLwrltr(char *str);
int punChar(char *str);
char*readString(char *str);

int main()
{
char givString[MAX_LEN];
  
FILE *fptr;
char fileName[100];
  
puts("Enter the file name: ");
gets(fileName);
//open file
fptr=fopen(fileName,"r");
  
int i = 0;
char ch=fgetc(fptr);
while(ch!=EOF)
{
givString[i++]=ch;
ch=fgetc(fptr);
}
  
printf("\nnumber of words :%d",numWords(givString));
printf("\nnumber of uppercase letters %d",numUppltr(givString));
printf("\nnumber of lowercase letters %d",numLwrltr(givString));
  
printf("\nnumber of punctuations %d\n",punChar(givString));
  
printf("\nnumber of digits:%d\n",numDigit(givString));
system("pause");
return 0;
}

char *readString(char *str)
{
int ch, i=0;
while((ch=getchar())!=EOF && ch!='\n')
{
if(i)
{
str[i]=ch;
i++;

}
str[i] = '\0';
}

return str;

}
int numUppltr(char *str)
{
int Upltr=0;
while(*str)
{
if(*str>='A' && *str<='Z')
{
Upltr++;

}
str++;
}
return Upltr;
}
int numLwrltr(char *str)
{
int lwrltr=0;
while(*str)
{
if(*str>='a' && *str<='z')
{
lwrltr++;
}
str++;
}
return lwrltr;
}
int punChar(char*str)
{
int count=0,i=0;
while(str[i])
{
if(ispunct(str[i]))
count++;
i++;

}
return count;

}
int numWords(char*str)
{
int wordcount=1,i=0;
while(str[i])
{
if(str[i]==' ')
++wordcount;
i++;


}
return wordcount;
}
int numDigit(char *str)
{
int digitcount=0;
while(*str)
{
if(*str>='0' && *str<='9')
{
digitcount++;
}
str++;

}
return digitcount;
}

INPUT

input.txt

hello

OUTPUT:

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