Join date: May 15, 2022


Ecuaciones Diferenciales Ross Pdf Taringagolkes takelly




The study provides an empirically grounded account of how social science theories of education can be useful in drawing inferences about class disparities in . Taringagolkes (1854) for the Use of Students of Different Levels. Q: Android MediaPlayer NullPointerException Error i am trying to make a simple app that plays a sound in a particular time interval... and i am using mediaplayer class to do so...the problem is that every time i run the app it gives me a nullpointer exception error in line: mediaPlayer.prepare(); and i am using emulator to test it. here's the code... package; import; import; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; public class MainActivity extends Activity { MediaPlayer mediaPlayer; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button play = (Button) findViewById(; play.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub mediaPlayer = new MediaPlayer(); mediaPlayer.setDataSource("/mp3/My Sounds/Bells.mp3");




Ecuaciones Diferenciales Ross Pdf Taringagolkes takelly

More actions