Revised getStudentById

    @Override
    public ProfileTableActivity getStudentById(int Id) {
        SQLiteDatabase db = dbHelper.getReadableDatabase();

        String whereClause = ProfileTableActivity.KEY_ID + "=?";
        String[] whereArgs = {Integer.toString(Id)};

        ProfileTableActivity student = new ProfileTableActivity();

        Cursor cursor = db.query(
                ProfileTableActivity.TABLE,
                ProfileTableActivity.COLUMN_COLLECTION,
                whereClause,
                whereArgs,
                null, null, null);

        if (cursor.moveToFirst()) {
            do {
                student.student_ID =cursor.getInt(cursor.getColumnIndex(ProfileTableActivity.KEY_ID));
                student.name =cursor.getString(cursor.getColumnIndex(ProfileTableActivity.KEY_name));
                student.email  =cursor.getString(cursor.getColumnIndex(ProfileTableActivity.KEY_email));
                student.age =cursor.getInt(cursor.getColumnIndex(ProfileTableActivity.KEY_age));

            } while (cursor.moveToNext());
        }
        cursor.close();
        db.close();
        return student;
    }