Count occurrences of a word in string

You are given a string and a word your task is that count the number of the occurrence of the given word in the string and print the number of occurrence of the word.
Examples:

Input : string = "GeeksforGeeks A computer science portal for geeks"
word = "portal"
Output : Occurrences of Word = 1 Time

Input : string = "GeeksforGeeks A computer science portal for geeks"
word = "technical" 
Output : Occurrences of Word = 0 Time

Approach :-

  • First, we split the string by spaces in a
  • Then, take a variable count = 0 and in every true condition we increment the count by 1
  • Now run a loop at 0 to length of string and check if our string is equal to the word
  • if condition true then we increment the value of count by 1 and in the end we print the value of count.

Below is the implementation of the above approach :

C++

// C++ program to count the number
// of occurrence of a word in
// the given string given string
#include
using namespace std;

int countOccurences(char *str,
string word)
{
char *p;

// split the string by spaces in a
vector a;

p = strtok(str, ” “);
while (p != NULL)
{
a.push_back(p);
p = strtok(NULL, ” “);
}

// search for pattern in a
int c = 0;
for (int i = 0; i < a.size(); i++) // if match found increase count if (word == a[i]) c++; return c; } // Driver code int main() { char str[] = "GeeksforGeeks A computer science portal for geeks "; string word = "portal"; cout << countOccurences(str, word); return 0; } // This code is contributed by // sanjeev2552 [tabby title="Java"]

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// Java program to count the number 
// of occurrence of a word in
// the given string given string
import java.io.*;
  
class GFG {
  
static int countOccurences(String str, String word) 
{
    // split the string by spaces in a
    String a[] = str.split(" ");
  
    // search for pattern in a
    int count = 0;
    for (int i = 0; i < a.length; i++) 
    {
    // if match found increase count
    if (word.equals(a[i]))
        count++;
    }
  
    return count;
}
  
// Driver code
public static void main(String args[]) 
{
    String str = "GeeksforGeeks A computer science portal for geeks ";
    String word = "portal";
    System.out.println(countOccurences(str, word));
}
}
  
/*This code is contributed by Nikita Tiwari.*/

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Python 3

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# Python program to count the number of occurrence 
# of a word in the given string given string
  
def countOccurences(str, word):
      
    # split the string by spaces in a
    a = str.split(" ")
  
    # search for pattern in a
    count = 0
    for i in range(0, len(a)):
          
        # if match found increase count 
        if (word == a[i]):
           count = count + 1
             
    return count       
  
# Driver code
str ="GeeksforGeeks A computer science portal for geeks  "
word ="portal"
print(countOccurences(str, word))

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C#

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// C# program to count the number 
// of occurrence of a word in
// the given string given string
using System;
  
class GFG 
{
static int countOccurences(string str,
                           string word) 
{
    // split the string by spaces
    string[] a = str.Split(' ');
  
    // search for pattern in string
    int count = 0;
    for (int i = 0; i < a.Length; i++) 
    {
          
    // if match found increase count
    if (word.Equals(a[i]))
        count++;
    }
  
    return count;
}
  
// Driver code
public static void Main() 
{
    string str = "GeeksforGeeks A computer science portal for geeks ";
    string word = "portal";
    Console.Write(countOccurences(str, word));
}
}
  
// This code is contributed
// by ChitraNayal

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PHP

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<?php 
// PHP program to count the number 
// of occurrence of a word in
// the given string given string
  
function countOccurences($str, $word
{
    // split the string by spaces
    $a = explode(" ", $str);
  
    // search for pattern in string
    $count = 0;
    for ($i = 0; $i < sizeof($a); $i++) 
    {
          
    // if match found increase count
    if ($word == $a[$i])
        $count++;
    }
  
    return $count;
}
  
// Driver code
$str = "GeeksforGeeks A computer science portal for geeks ";
$word = "portal";
echo (countOccurences($str, $word));
  
// This code is contributed
// by ChitraNayal
?>

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Output:

1

Reference : split function python



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Improved By : Ita_c, sanjeev2552



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