how to count the number of occurrences of a character in a string in java

Question

Problem :

How to count the number of occurrences of a character in a string in java

Answer 1

Bellow is definitely the fastest way. Regexes are very slow here, and also harder to understand.

public int countChar(String str, char c)
{
    int count = 0;

    for(int i=0; i < str.length(); i++)
    {    if(str.charAt(i) == c)
            count++;
    }

    return count;
}