public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;
    private TextToSpeech textToSpeech;


    public void SpeakForMe(String astr)
    {
        pikok = 3;
        textToSpeech.speak( astr, TextToSpeech.QUEUE_FLUSH, null, null); //with this line i get

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.navigationspeechclient, PID: 2021
    java.lang.NullPointerException: Attempt to invoke virtual method 'int android.speech.tts.TextToSpeech.speak(java.lang.CharSequence, int, android.os.Bundle, java.lang.String)' on a null object reference
        at com.navigationspeechclient.MapsActivity.SpeakForMe(MapsActivity.java:44)
    }

int pikok;


}