public double doCalories(boolean fem, boolean male, double age, double weight, double feet, double inches){

    DisplayDateTime = (TextView)findViewById(R.id.date_test);
    calander = Calendar.getInstance();
    simpledateformat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
    Date = simpledateformat.format(calander.getTime());
    DisplayDateTime.setText(Date);


    double bmrResult = 0;
    double height_in_inches;

    if (MainActivity.unit_is_gram){
        weight = weight * 2.2;
    }

    if (MainActivity.unit_is_meter){
        height_in_inches = 0.39370* inches; //actually is 0.39370 * centimeters
    }

    else height_in_inches = (feet*12)+inches;

    if (fem == true) {

        bmrResult = 10*(weight/2.2)+6.25*(height_in_inches*2.54)-5*age-161;
    }

    else if (male == true){


        bmrResult = 10*(weight/2.2)+6.25*(height_in_inches*2.54)-5*age+5;
    }



    return bmrResult;
}

private static final String DATABASE_NAME = "UserManager.db";

// User table name
private static final String TABLE_USER = "user";

// User Table Columns names
private static final String COLUMN_USER_ID = "user_id";
private static final String COLUMN_USER_NAME = "user_name";
private static final String COLUMN_USER_EMAIL = "user_email";
private static final String COLUMN_USER_PASSWORD = "user_password";


// create table sql query
private String CREATE_USER_TABLE = "CREATE TABLE " + TABLE_USER + "("
        + COLUMN_USER_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_USER_NAME + " TEXT,"
        + COLUMN_USER_EMAIL + " TEXT," + COLUMN_USER_PASSWORD + " TEXT" + ")";