C#•3y ago

How do I use recursive methods and constructions together? [Answered]

i don't know what is wrong

51 Replies

TheRanger•3y ago

what does the error message say?

Yawnder•3y ago

Probably that there is no such method as Power accepting 2 parameters.

4OP•3y ago

Yawnder•3y ago

No, that can't be it.

TheRanger•3y ago

do you have a method called Power that takes 2 ints somewhere?

Yawnder•3y ago

You're talking about a runtime error while this can't compile.

4OP•3y ago

I need to use fields inside power method

TheRanger•3y ago

do that then

4OP•3y ago

this ?

Yawnder•3y ago

How can you reach there when you have a compile error?

TheRanger•3y ago

not anymore i guess

Yawnder•3y ago

Oh, there is that other method. Can you $codegif the whole class please?

MODiX•3y ago

https://cdn.discordapp.com/attachments/364492811489509376/892176158312001586/code.gif

4OP•3y ago

can i post all the code here, it's short already

TheRanger•3y ago

StackOverFlow exception means there is a method that keeps calling itself infinitely and Power keeps calling itself, infinitely

Yawnder•3y ago

That's what I'm asking, but not as a screenshot, as $code

MODiX•3y ago

To post C# code type the following: ```cs // code here ``` Get an example by typing $codegif in chat If your code is too long, post it to: https://paste.mod.gg/

4OP•3y ago

i use google translate sorry for my misakes

TheRanger•3y ago

what is the value of powernum?

4OP•3y ago

namespace something
{




    class Calculate
    {
        int _baseNum;
        int _powerNum;



        public Calculate(int _baseNum, int _powerNum)
        {
            this._baseNum = _baseNum;
            this._powerNum = _powerNum;
        }


        //int _baseNum, int _powerNum


        public int Power(int _baseNum, int _powerNum)
        {



            if (this._powerNum == 0)

                return 1;
            else
                return this._baseNum *= Power(this._baseNum, this._powerNum - 1);

          
        }






        static void Main()
        {

            Calculate number = new Calculate(2,3);
            number.Power(4,5);

            
        }

    }

}

namespace something
{




    class Calculate
    {
        int _baseNum;
        int _powerNum;



        public Calculate(int _baseNum, int _powerNum)
        {
            this._baseNum = _baseNum;
            this._powerNum = _powerNum;
        }


        //int _baseNum, int _powerNum


        public int Power(int _baseNum, int _powerNum)
        {



            if (this._powerNum == 0)

                return 1;
            else
                return this._baseNum *= Power(this._baseNum, this._powerNum - 1);

          
        }






        static void Main()
        {

            Calculate number = new Calculate(2,3);
            number.Power(4,5);

            
        }

    }

}

TheRanger•3y ago

i see the issue

4OP•3y ago

3 i guess

TheRanger•3y ago

you never used your parameters

Yawnder•3y ago

It's weird. You're using fields while you don't need fields.

4OP•3y ago

this is my homework

TheRanger•3y ago

your not using your parameters, ur using your fields

4OP•3y ago

how i use its?

Yawnder•3y ago

I don't think a homework would be as specific as saying "be recursive, but use fields not parameters".

TheRanger•3y ago

remove this.

Yawnder•3y ago

And I would say remove the fields all together. Even make the method static I think.

TheRanger•3y ago

yeah

4OP•3y ago

my teacher likes hard questions

Yawnder•3y ago

It's not about it being hard. It's just a bad design imo. Do you have the verbatim question somewhere? What language is it in?

4OP•3y ago

then how do i use the fields?

Yawnder•3y ago

(Gotta make a work call, but I'll check back in after) By keeping this. ...

4OP•3y ago

hmm

TheRanger•3y ago

if you want to use fields your method doesnt need parameters

4OP•3y ago

i'll wait Can't fields take parameters?

TheRanger•3y ago

because ur basically passing arguments to the method, but you never used them if you mean assigning a value to fields, you can

4OP•3y ago

I don't know how to use them

TheRanger•3y ago

what is your goal? and why do you need fields?

4OP•3y ago

i need power calculator with recrusive methods and constructions

TheRanger•3y ago

yes but why do u need fields?

4OP•3y ago

because we learned these topics in the lesson and I have to write this code using them

TheRanger•3y ago

did they tell you in the lesson to use the method's parameters?

4OP•3y ago

i think so

TheRanger•3y ago

i can simulate how your code is working now

4OP•3y ago

yes pls

TheRanger•3y ago

          Calculate number = new Calculate(2,3);
            number.Power(4,5);

 class Calculate
    {
        int _baseNum; // became 2 from the constructor
        int _powerNum; // became 3 from the constructor



        public Calculate(int _baseNum, int _powerNum)
        {
            this._baseNum = _baseNum; // _baseNum is 2
            this._powerNum = _powerNum; // _powerNum is 3
        }


        //int _baseNum, int _powerNum


        public int Power(int _baseNum, int _powerNum) // 
        {
           // _baseNum passed from the method is 4, unrelated to _baseNum of field which is 2
           // _powerNum passed from the method is 5, unrelated to _powerNum of field which is 3


            if (_powerNum == 0) // this is _powerNum of the method, which is 5

                return 1;
            else
                return this._baseNum *= Power(this._baseNum, this._powerNum - 1); //this._baseNum is 2, different from _baseNum which came from the method which is 4
//this._powerNum is 3, different from _powerNum which came from the method which is 5

            // (_powerNumb==0)? return 1 : return _baseNum *= Power(_baseNum, _powerNumb - 1);

        }

          Calculate number = new Calculate(2,3);
            number.Power(4,5);

 class Calculate
    {
        int _baseNum; // became 2 from the constructor
        int _powerNum; // became 3 from the constructor



        public Calculate(int _baseNum, int _powerNum)
        {
            this._baseNum = _baseNum; // _baseNum is 2
            this._powerNum = _powerNum; // _powerNum is 3
        }


        //int _baseNum, int _powerNum


        public int Power(int _baseNum, int _powerNum) // 
        {
           // _baseNum passed from the method is 4, unrelated to _baseNum of field which is 2
           // _powerNum passed from the method is 5, unrelated to _powerNum of field which is 3


            if (_powerNum == 0) // this is _powerNum of the method, which is 5

                return 1;
            else
                return this._baseNum *= Power(this._baseNum, this._powerNum - 1); //this._baseNum is 2, different from _baseNum which came from the method which is 4
//this._powerNum is 3, different from _powerNum which came from the method which is 5

            // (_powerNumb==0)? return 1 : return _baseNum *= Power(_baseNum, _powerNumb - 1);

        }

4OP•3y ago

omg im a dump then I have to delete the filedlari and use only recursive methods

Accord•3y ago

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How do I use recursive methods and constructions together? [Answered]