C++ code: Count Number of space of the given string

C++ code: Count Number of space of the given string

In this article, we will discuss the concept of the C++ code: Count Number of spaces of the given string

In this post, we are going to learn how to  count the number of spaces  in  the given string in C++ programming language

Code to count the white spaces in the given string

count the white space in the given string using for loop

The program allows the user to enter a String and then it counts the number of white space in the given string using for loop in C++ programing language

Program 1

#include <iostream>
#include <conio.h>
#include <stdio.h>
using namespace std;

int main()
{
char str[100];
int i;
int space=0;
    cout<<"Enter a string\n";

    gets(str);
    for(i=0; i<=str[i]; i++){
 if(str[i]==' '){
        space++;
    }
}

cout<<"Total white space :"<<space;
getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter a string
C++ is an OOP supported language
Total white space: 5

 

Count the white space of the given string using while loop

The program allows the user to enter a String and then it counts the white space in the given string using while loop in C++ programing language

Program 2

#include <iostream>
#include <conio.h>
#include <stdio.h>
using namespace std;

int main()
{
char str[100];
int i;
int space=0;
    cout<<"Enter a string\n";

    gets(str);
         i=0;
    while(i<=str[i]){
 if(str[i]==' '){
        space++;
 }
    i++;
}

cout<<"Total white space :"<<space;
getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter a string
C and C++ are procedural languages
Total white space: 5

 

Count Number of space of the given string using do-while loop

The program allows the user to enter a String and then it counts the white spaces in the given string using do-while loop in C++ programing language

Program 3

#include <iostream>
#include <conio.h>
#include <stdio.h>
using namespace std;

int main()
{
char str[100];
int i;
int space=0;
    cout<<"Enter a string\n";

    gets(str);
         i=0;
  do{
 if(str[i]==' '){
        space++;
 }
    i++;
}  while(i<=str[i]);

cout<<"Total white space :"<<space;
getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter a string
This is a string
Total white space: 3

 

Approaches

1. Declare a Caracter array as char ch[100];
2. Declare and initialize integer variables as space=0;
   
3. The user asked to enter a string
4. The given string is stored in the variable str;
5. A loop(for, while and do-while) is used to count space in the given string.
6. It is initialized as i=0, checks the condition whether i<=str[i]; and executes the loop until the given condition becomes true
7. Use an if condition to test if(str[i]==’  ‘), when the if statements is true,  The space becomes space + 1( space = space +1);
8. When it is false, terminates the loop
9. Finally, the program displays the total number of space of the given string

 

 

Suggested for you

for loop in C++ language

while loop in C++ language

do-while loop in C++ language

 

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