- C++ Programming Examples
- C++ Programming Examples
- C++: Hello World
- C++: Get Input
- C++: Print Integer
- C++: Add two numbers
- C++: Add, Sub, Multiply, Div
- C++: Add Digits
- C++: Find Average and Percentage
- C++: Find Arithmetic Mean
- C++: Sum of n Natural Numbers
- C++: Sum of n Numbers
- C++: Square's Area and Perimeter
- C++: Rectangle's Area and Perimeter
- C++: Triangle's Area and Perimeter
- C++: Area and Circumference
- C++: Find Simple Interest
- C++: Fahrenheit to Celsius
- C++: Celsius to Fahrenheit
- C++: Print Prime Numbers
- C++: Reverse a Number
- C++: Swap Two Numbers
- C++: Print Multiplication Table
- C++: Find Factorial of a Number
- C++: Find Factors of a Number
- C++: Find HCF and LCM
- C++: Create a Calculator
- C++: Count Digits in a Number
- C++: First and Last Digit Sum
- C++: Product of Number Digits
- C++: Sum of Squares of Digits
- C++: Interchange Digits of Number
- C++ if-else Programs
- C++: Check Even or Odd
- C++: Check Prime or Not
- C++: Check Alphabet or Not
- C++: Check Vowel or Not
- C++: Check Leap Year or Not
- C++: Check Reverse equals Original
- C++: Check Perfect Number
- C++: Check Palindrome or Not
- C++: Check Armstrong or Not
- C++: Divisibility Test
- C++: Find Labor Wage
- C++: Find Discounted Price
- C++: Find Shipping Charge
- C++: Find Telephone Bills
- C++: Calculate Student Grade
- C++: Largest of Two Numbers
- C++: Largest of Three Numbers
- C++ Number Conversion
- C++: Decimal to Binary
- C++: Decimal to Octal
- C++: Decimal to Hexadecimal
- C++: Binary to Decimal
- C++: Binary to Octal
- C++: Binary to Hexadecimal
- C++: Octal to Decimal
- C++: Octal to Binary
- C++: Octal to Hexadecimal
- C++: Hexadecimal to Decimal
- C++: Hexadecimal to Binary
- C++: Hexadecimal to Octal
- C++ Pattern Programs
- C++: Pattern Programs
- C++: Print Diamond Pattern
- C++: Print Floyd's Triangle
- C++: Print Pascal's Triangle
- C++ Array Programs
- C++: 1D Array Program
- C++: Linear Search
- C++: Binary Search
- C++: Largest Element in an Array
- C++: Smallest Element in an Array
- C++: Find Second Largest Element
- C++: Find Second Smallest Element
- C++: Sum of All Elements
- C++: Multiply All Elements
- C++: Element in Even Position
- C++: Element in Odd Position
- C++: Print Even Numbers in Array
- C++: Print Odd Numbers in Array
- C++: Count Even or Odd Numbers
- C++: Sum of Even or Odd Numbers
- C++: Count Positive, Negative, Zero
- C++: Reverse an Array
- C++: Insert an Element
- C++: Delete an Element
- C++: Merge two Arrays
- C++: Bubble Sort
- C++: Selection Sort
- C++: Insertion Sort
- C++: Common Elements
- C++: 2D Array Programs
- C++: Add Two Matrices
- C++: Subtract Two Matrices
- C++: Transpose Matrix
- C++: Multiply Two Matrices
- C++: 3D Array Programs
- C++ String Programs
- C++: Print String
- C++: Find String Length
- C++: Compare Two Strings
- C++: Copy String
- C++: String Concatenation
- C++: Reverse a String
- C++: Delete Vowels from a String
- C++: Delete a Word from a String
- C++: Count Characters in a String
- C++: Count Words in a String
- C++: Frequency of Words
- C++: Remove Spaces from Strings
- C++: Sort a String
- C++: Uppercase to Lowercase
- C++: Lowercase to Uppercase
- C++: Swap Two Strings
- C++: Check the Anagram or Not
- C++: Capitalize All Words in a String
- C++: Get Numbers from a String
- C++ File Programs
- C++: Read a File
- C++: Write Content to a File
- C++: Append Data to a File
- C++: Read and Display File
- C++: Copy a File
- C++: Merge Two Files
- Count Characters in a File
- C++: Capitalize Every Word
- C++: List Files in Directory
- C++: Delete a File
- C++: Encrypt and Decrypt a File
- C++ Misc Programs
- C++: Print ASCII Value
- C++: Add Binary Numbers
- C++: Generate Random Numbers
- C++: Print a Smiling Face
- C++: Days into Years and Months
- C++: Add Two Numbers using Pointer
- C++: Print Fibonacci Series
- C++: Generate Armstrong Numbers
- C++: Find nCr and nPr
- C++: Get IP Address
- C++: Print Date and Time
- C++: Shutdown and Restart Computer
- C++ Programming Tutorial
- C++ Tutorial
C++ Program to Count the Number of Words in a String
In this article, you will learn and get code to count the total number of words present or available in a given string by the user at run-time in the C++ language.
For example, if you enter "codes cracker dot com," the total number of words is four.
In C++, count the total number of words in the string
To count the total number of words available in a string in C++ programming, you have to ask the user to enter the string or sentence first. And then count and print the result as shown in the program given below.
The question is, "Write a program in C++ that counts the total number of words in a string." Here is its answer.
#include<iostream> #include<stdio.h> using namespace std; int main() { char str[200]; int i=0, chk=0, countWord=0; cout<<"Enter the String: "; gets(str); while(str[i]!='\0') { if(str[i]==' ') { if(chk!=0) countWord++; chk=0; } else { chk++; } i++; } if(chk!=0) countWord++; cout<<"\nTotal Number of Words = "<<countWord; cout<<endl; return 0; }
This program was built and runs under the Code::Blocks IDE. Here is its sample run:
Now supply any string, say, this is codes cracker dot com as input, and press the ENTER key to count and print the total number of words available in the entered string:
And here is another sample run with the following user input:
this is codes cracker dot com
That is, __this____is_codes_cracker____dot_com__. In this string, there are 2, 4, 1, 1, 4, and 1 spaces available before each word, and 2 spaces after the last word:
The dry run of the above program with user input, this is codes cracker dot com, goes like this:
- Initial values: i=0, chk=0, countWord=0.
- When the user enters a string, then it gets stored in the str variable in a way that
- str[0]=t
- str[1]=h
- str[2]=i
- and so on, up to
- str[28]=m
- Because the maximum size of str[] is 200, but the entered string is of size 29 (because indexing starts at 0, so 28 (the last index) + 1 will be the size). Therefore, at the next index after the last character's index, a null-terminated character (\0) automatically gets assigned. So str[29]=\0
- A null-terminated character indicates that no character is left in the index, where it is available.
- Now the condition of the while loop gets evaluated.
- That is, the condition str[i]!='\0' or str[0]!='\0' or t!='\0' evaluates to be true, therefore program flow goes inside the loop.
- There, the condition of the if gets evaluated.
- That is, the condition str[i]==' ' or str[0]==' ' or t==' ' evaluates to be false, therefore, program flow does not go inside its body, rather it goes to else's body and increments the value of chk. So chk=1
- And as in the last statement, the value of i gets incremented. So i=1
- Now program flow goes back and evaluates the condition of the while loop again.
- The process continues until the condition of the while loop evaluates to be false.
- On continuing the evaluation of the while loop, here are the values after each evaluation:
- chk=1, i=1
- chk=2, i=2
- chk=3, i=3
- chk=4, i=4
- chk=0, countWord=1, i=5
- chk=1, i=6
- chk=2, i=7
- chk=0, countWord=2, i=8
- chk=1, i=9
- chk=2, i=10
- chk=3, i=11
- chk=4, i=12
- chk=5, i=13
- chk=0, countWord=3, i=14
- chk=1, i=15
- chk=2, i=16
- chk=3, i=17
- chk=4, i=18
- chk=5, i=19
- chk=6, i=20
- chk=7, i=21
- chk=0, countWord=4, i=22
- chk=1, i=23
- chk=2, i=24
- chk=3, i=25
- chk=0, countWord=5, i=26
- chk=1, i=27
- chk=2, i=28
- chk=3, i=29
- After exiting from the while loop, the condition chk!=0 or 3!=0 evaluates to be true, so the value of countWord gets incremented. So countWord=6
- Now print the value of countWord as the output of the total number of words in the string.
« Previous Program Next Program »