Return the number of times a character shows up in a string

    public class StringFind
{
    /** findLetter looks for a letter in a String
    * @param String letter to look for
    * @param String text to look in
    * @return boolean true if letter is in text
    * After running the code, change this method to return
    * an int count of how many times letter is in the text.
    */
    public int findLetter(String letter, String text)
   {
    int count = 0;
    for(int i=0; i < text.length(); i++)
       {
    if (text.substring(i, i+1).equalsIgnoreCase(letter))
               {
              
    count = count++;
               }
       }
       
       
    return(count);
      
   }

    public static void main(String args[])
    {
      
    StringFind test = new StringFind();
    String message = "Apples and Oranges";
    String letter = "p";
    System.out.println("Does " + message +  " contain a " + letter + "?");
        
    }
}

There is an error with this code and I am not sure how to fix it. This code is supposed to return the number of times a letter shows up in a message that the user inputs. I have struggled to figure out what I need to change without ero

>Solution :

The first mistake is in findLetter where you have

count = count++; // this is effectively count = count;

That should be

count++; // or count = count + 1;

Then you aren’t calling findLetter. Change your current println to something like

System.out.printf("%s contains %s %d times.%n", message, letter, 
        test.findLetter(letter, message));

With no other changes, I then get

Apples and Oranges contains p 2 times.