Why should I "Transform myVariable to final one element array"?

I'm trying to access the h variable in the inner class but an error keeps showing up "Cannot assign a value to final variable h". I tried quick-fix and it instructed me to "Transform h to final one element array".What does that mean?

int Update ()
{
    final int h;
    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
    preferences.registerOnSharedPreferenceChangeListener(new SharedPreferences.OnSharedPreferenceChangeListener() {


        @Override
        public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {

            if(key.equalsIgnoreCase("PINCODE"))
            {
                h = sharedPreferences.getInt(key,0);

            }
        }
    });

    return h;
}

}