How to use Spinner

private List Game_Mode_List
  for (int i=0;i < Game_Mode.length ;i++) {
   // Populate the Game_Mode List
   Game_Mode_List.add(Game_Mode[i]);
  }
   // Put the Game_Mode_List to an Addapter and set addapter tpye
  ArrayAdapter Game_Mode_Addapter = new ArrayAdapter(
    this, android.R.layout.simple_spinner_dropdown_item, Game_Mode_List);
  Game_Mode_Addapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item );
  
    // Create Spinner and attach the addapter to it.
  Spinner Game_Mode_Spinner = new Spinner(this);
  Game_Mode_Spinner.setAdapter(Game_Mode_Addapter);
    // The listener will listen the change. arg2 is the item selected
  Game_Mode_Spinner.setOnItemSelectedListener(
       new AdapterView.OnItemSelectedListener() {
     @Override
     public void onItemSelected(AdapterView arg0, View arg1, int arg2, long arg3) {
      myGameMode = String.valueOf(arg2);
     }
     @Override
     public void onNothingSelected(AdapterView arg0) {
      myGameMode = "1";
     }
       }
   );