private void startAlarm(Calendar c) {
        AlarmManager alarmManager = (AlarmManager) getContext().getSystemService(Context.ALARM_SERVICE);
        Intent intent = new Intent(getContext(), AlarmReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(getContext(), 0, intent, 0);
        alarmManager.set(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pendingIntent);
    }

mSaveAssessBtn.setOnClickListener(new View.OnClickListener() {
            @Override
                public void onClick(View v) {
                if (mSetAlert.isChecked()) {
                    Calendar c = Calendar.getInstance();
                    c.setTime(mAssessment.getGoalDate());
                    startAlarm(c);
                }
                mAssessment.setAssessType(assessmentType);
                Intent myIntent = new Intent(getActivity(), AssessmentListActivity.class);
                startActivity(myIntent);
            }
        });

private void startAlarm2(Calendar c2) {
        AlarmManager alarmManager2 = (AlarmManager) getContext().getSystemService(Context.ALARM_SERVICE);
        Intent intent2 = new Intent(getContext(), AlarmReceiver.class);
        PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getContext(), 0, intent2, 0);
        alarmManager2.set(AlarmManager.RTC_WAKEUP, c2.getTimeInMillis(), pendingIntent2);
    }

submitStatusBtn.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Calendar c2 = Calendar.getInstance();
                    c2.setTime(mCourse.getStartDate());
                    startAlarm2(c2);
                    mCourse.setTitle(mTitleField.getText().toString());
                    mCourse.setCourseStatus(mCourseStatus.getText().toString());
                    //mCourse.setCourseStatus(radioButton.getText().toString());
                    mCourse.setCourseNote(mOptonalNote.getText().toString());
                    mCourse.setCourseMentorName(mMentorName.getText().toString());
                    mCourse.setCourseMentorPhone(mMentorPhone.getText().toString());
                    mCourse.setCourseMentorEmail(mMentorEmail.getText().toString());
                    Intent myIntent = new Intent(getActivity(), CourseListActivity.class);
                    startActivity(myIntent);
                }
            });

public class AlarmReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        //first notification AssessmentFragment
        NotificationHelper notificationHelper = new NotificationHelper(context);
        NotificationCompat.Builder nb = notificationHelper.getChannelNotification();
        notificationHelper.getManager().notify(0, nb.build());
        //second notification CourseFragment
        NotificationHelper2 notificationHelper2 = new NotificationHelper2(context);
        NotificationCompat.Builder nb2 = notificationHelper2.getChannelNotification();
        notificationHelper2.getManager().notify(1, nb2.build());
    }
}

public NotificationCompat.Builder getChannelNotification() {
        return new NotificationCompat.Builder(getApplicationContext(), channelID)
                .setContentTitle("Assessment Goal today!")
                .setContentText("Your assessment Goal Date is today!")
                .setSmallIcon(R.drawable.alert);
    }

public NotificationCompat.Builder getChannelNotification() {
        return new NotificationCompat.Builder(getApplicationContext(), channelID2)
                .setContentTitle("Course Starts today!")
                .setContentText("Your Course Start Date is today!")
                .setSmallIcon(R.drawable.alert);
    }