Reffer to a class/method

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I have this method in my Calroies Class which inhertis the User class.

class Calories : User
    {
        public void CalcuateCaloriesMale()
        {
            var user = new User();
            var equation = (10 * user.Weight) + (6.25 * user.Height) - (5 * user.Age) + 5;
            Console.WriteLine("Based on the Mifflin – St Jeor Formula You need to eat {0} Kalories a day\nTo Gain Weight ", equation);

        }
    }

And i have this code in Program.cs

if (newGoal.GoalStatusGainWeight ==  true)
    {
        var calories = new Calories();
        switch (newUser.Gender)
        {
            case "m":
                calories.CalcuateCaloriesMale();
                break;

Now I dont understand how to make the Calories Class know what the user has typed in at the beginning of the Beginning.

newUser.Name = Question.AskString("Name: ");
    newUser.Age = Question.AskInt("Age: ");
    newUser.Gender = Question.AskString("Gender(m/f): ");
    newUser.Height = Question.AskInt("Height(cm): ");
    newUser.Weight = Question.AskInt("Weight(kg): ");

The Calories Class doesn't take into consideration waht the user has typed in.
I tought i can juse make a new User, but i guess my thinking was wrong.
What am i doing wrong ? How can i imagine this working so i can learn it better?

What I have tried:

I dont understand how to make the code know what the user has typed in initally

Posted 3-Jun-18 6:09am

Member 13733578

Updated 3-Jun-18 7:41am

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Thomas Daniels · Accepted Answer · 2018-06-03T07:43:00

Make sure that the Calories class gets newUser, for example as argument to CalculateCaloriesMale:

C#

        public void CalcuateCaloriesMale(User user) // add "user" parameter
        {
            // now you don't need this line: var user = new User();
            var equation = (10 * user.Weight) + (6.25 * user.Height) - (5 * user.Age) + 5;
            Console.WriteLine("Based on the Mifflin – St Jeor Formula You need to eat {0} Kalories a day\nTo Gain Weight ", equation);

        }

...

if (newGoal.GoalStatusGainWeight ==  true)
    {
        var calories = new Calories();
        switch (newUser.Gender)
        {
            case "m":
                calories.CalcuateCaloriesMale(newUser); // Pass newUser to the method
                break;

Alternatively, you could create a constructor[^] for Calories and take a User there and store it, then use it in a parameterless CalculateCaloriesMale class.

Side note: it hardly makes sense to make Calories inherit from User. It would appear to a human developer as if Calories is a certain type of User, which is of course not true. And it doesn't look like it has any use.