How do you count the occurrence of a given character in a string? code example

Example 1: c program to the count the number of times each character appears

#include <stdio.h>
int main() {
    char str[1000], ch;
    int count = 0;

    printf("Enter a string: ");
    fgets(str, sizeof(str), stdin);

    printf("Enter a character to find its frequency: ");
    scanf("%c", &ch);

    for (int i = 0; str[i] != '\0'; ++i) {
        if (ch == str[i])
            ++count;
    }

    printf("Frequency of %c = %d", ch, count);
    return 0;
}

Example 2: count number of occurrences of character in string

public class CountStringOccurence {
public static void main(String[] args) {

int count= countOccurences("aaassssddadad",'s');
System.out.println(count);

}

private static int countOccurences(String word, char character){
  
  int count = 0;
  for(int i = 0; i < word.length(); i++){
    
    if(word.chartAt(i) == character){
      
      count++; } 
                 }
      return count;
}
}

Example 3: number of occurrences of character in string

public class CountStringOccurence {
public static void main(String[] args) {

int count= countOccurences("aaassssddadad",'s');
System.out.println(count);

}

private static int countOccurences(String word, char character){
  
  int count = 0;
  for(int i = 0; i < word.length(); i++){
    
    if(word.chartAt(i) == character){
      
      count++; } 
                 }
      return count;
}
}