title: How to count occurrence of Polish characters in .txt file
body: <p>I have to prepare a .txt file and count how many times each character of alphabet occurs in the file. I've found a very nice piece of code, but unfortunately, it doesn't work with Polish characters like ą,ę,ć,ó,ż,ź. Even though I put them in the array, for some reason they are not found in the .txt file so the output is 0. </p>
  
  <p>Does anyone know why? Maybe I should count them differently, with "Switch" or something similar. 
  Before anyone asks - yes, the .txt file is saved with UTF-8 :)</p>
  
  <pre><code>public static void main(String[] args) throws FileNotFoundException {
          int ch;
          BufferedReader reader;
          try {
              int counter = 0;
  
              for (char a : "AĄĆĘÓBCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray()) {
                  reader = new BufferedReader(new FileReader("C:\\Users\\User\\Desktop\\pan.txt"));
                  char toSearch = a;
                  counter = 0;
  
                  try {
                      while ((ch = reader.read()) != -1) {
                          if (a == Character.toUpperCase((char) ch)) {
                              counter++;
                              }
                      }
  
                  } catch (IOException e) {
                      System.out.println("Error");
                      e.printStackTrace();
                  }
                  System.out.println(toSearch + " occurs " + counter);
  
              }
          } catch (FileNotFoundException e) {
              e.printStackTrace();
          }
      }
  </code></pre>