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}
                    }
                    deleteData task = new deleteData();
                    task.execute(numb);
                }


                public void onActivityResult(int requestCode, int resultCode, Intent data) {
                    switch(requestCode) {
                        case REQUEST_CONNECT_DEVICE :
                            //When DeviceListActivity returns with a device to connect
                            if(resultCode == Activity.RESULT_OK) {
                                btService.getDeviceInfo(data);
                            }
                            break;
                        case REQUEST_ENABLE_BT :
                            //When the request to enable Bluetooth returns
                            if(resultCode == Activity.RESULT_OK) {
                                //Next Step
                                btService.scanDevice();
                            }
                            else {
                                Log.d(TAG, "Bluetooth is not enabled");
                            }
                            break;
                    }
                }
            }


            < PasswordActivity.java >
            package kr.icehs.intec.automaticvaluablesbox_0515;


            import android.content.Intent;
            import android.support.v7.app.AppCompatActivity;
            import android.os.Bundle;
            import android.view.View;
            import android.widget.TextView;
            import android.widget.Toast;


            public class PasswordActivity extends AppCompatActivity {


                TextView passwordText;


                @Override
                protected void onCreate(Bundle savedInstanceState) {
                    super.onCreate(savedInstanceState);


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