C++ How to Read the Numbers of Words in a Text File
Introduction
In this post, I am going to write a c program to count the total number of words in a text file. This is a file treatment plan in c. Therefore, we volition use some file treatment functions in this program.
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Earlier writing the plan, we must know how to identify the words. After some alphabet, if at that place is a space or a new line, then we can say this is a word. Nosotros have to use the same logic in this plan.
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Here is the input file "abc.txt" that we are going to read.
Hello, dear friends. How are you?
Let u.s.a. come across the expected output starting time.
Output for Counting Number of Words in a Text File
As you can run into from the to a higher place output, we are counting the total number of words on the basis of bare spaces. In other words, we can say, we are counting the total number of spaces plus 1.
Why plus ane? The reason is nosotros are likewise counting the EOF which is the end of the file. Now, let united states of america meet the bodily c programme for counting the full number of words.
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C Programme to Count Total Number of Words in a Text File
#include <stdio.h> #include <stdlib.h> int main() { FILE *fp; char ch; int words=0; fp=fopen("abc.txt","r"); if(fp==NULL) { printf("There is an error while opening a file"); return -one; } printf("Contents of the file are\n\n"); while((ch=fgetc(fp))!=EOF) { putchar(ch); if((ch==' ')||(ch=='\n')) { words++; } } fclose(fp); printf("\north\nTotal Number of Words = %d",words+1); return 0; } Caption
Now, we volition run into the explanation in short.
Variable declarations
Here, we take declared three variables. Ane is of FILE type, one is of char type and the other is of type int.
The "fp" is the file pointer that is associated with the opened file.
The variable "ch" will store the character that is read from the file. And then, we will compare the value of this ch variable with bare infinite and new line grapheme i.e. \northward.
The variable "words" which is of int type volition store the number of words.
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While loop
In the while loop, we are doing the post-obit things.
- We are reading the single grapheme from the file that is associated with the file pointer fp and storing that character in the variable ch.
- Then we are comparing the value of ch and EOF i.e. end of the file.
- If in that location is no EOF, so we will execute the body of while loop.
- In the while loop, we are going to display the contents of the file using putchar() function.
- Now, information technology is time to count the number of words. For this, we have written 1 if statment and comparison the value of ch with blank space and new line character \n with logical OR operator. If any of these condition get true, then we will increment the value of the variable words.
Terminal Output
In the end, using the printf() function, we will display the total number of words in a file abc.txt which is a text file.
I hope you have understood this programme. If you lot know the Hindi language, then you lot can watch the following video.
Cheers.
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C++ How to Read the Numbers of Words in a Text File
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