###### tags: `Code` `note`
# 物件導向程式設計功課
:::info
:man: 老師：戴文凱
:100: 學分：3
:::

# Week1 Feb 23 ,2021
## [ComputeSQRT]()
- main.cpp

    #include <iostream>
    #include <string>
    #include <iomanip>

    using namespace std;

    int main() {

        double n, guess, last_guess;

        cin >> n;
        last_guess = 0;

        while (!cin.eof()) {
            guess = n / 2.0;
            while (!(abs(guess - last_guess) < 0.01)) {
                last_guess = guess;
                guess = (guess + n / guess) / 2;
            }
            cout << fixed << setprecision(2) << guess << endl;
            cin >> n;
        }
    }

# Week2 Mar 2 ,2021

# Week3 Mar 9 ,2021

# Week4 Mar 16 ,2021

# Week5 Mar 23 ,2021
## [Hot dog stand](https://github.com/jimmy1010ww/NTUST_109-2_ODD/tree/main/CS3005301HW05/TS0501)
- main.cpp

    #include <iostream>
    #include "HotDogStand.h"
    using namespace std;

    int main() {
        HotDogStand stand1("Stand1", 0);
        HotDogStand stand2("Stand2", 100);
        HotDogStand stand3("Stand3");
        stand1.justSold();
        stand2.justSold();
        stand3.justSold();
        stand1.print();
        stand2.print();
        stand3.print();
        std::cout << "Total Sold : " << HotDogStand::allStandSoldAmount() << std::endl;
        return 0;

    }

- HotDogStand.h

        #ifndef HotDogStand_H
        #define HotDogStand_H
        #include <iostream>
        #include <string>
        using namespace std;

        class HotDogStand
        {
        public:
            HotDogStand(const char *id);                //Construct a HotDogStand with the given ID and set the sales volume to 0.
            HotDogStand(const char *id, int amount);    //Construct a HotDogStand with the given ID and sales volume.
            void justSold();                            //Increase the hot dog sales volume by 1.
            void print();                               //Print the ID and sales volume of the store separated by spaces.    
            int thisStandSoldAmount();                  //Return the sales volume of the store.
            static int allStandSoldAmount();            //Return the total sales volume of all stores.
        private:
            char *standId;                     //The ID of the store.
            int hotDogSellAmount;              //The hot dog sales volume of the store.    
            static int totalSellAmount;        //The total hot dog sales volume of all stores.
        };
        #endif

- HotDogStand.cpp

    #include "HotDogStand.h"

    int HotDogStand::totalSellAmount = 0;

    HotDogStand::HotDogStand(const char * id)
    {
        HotDogStand::hotDogSellAmount = 0;
        HotDogStand::standId = (char*)id;    //remove const
    }

    HotDogStand::HotDogStand(const char * id, int amount)
    {
        HotDogStand::hotDogSellAmount = amount;
        HotDogStand::totalSellAmount += amount;
        HotDogStand::standId = (char*)id;    //remove const
    }

    void HotDogStand::justSold()
    {
        HotDogStand::hotDogSellAmount++;
        HotDogStand::totalSellAmount++;
    }

    void HotDogStand::print()
    {
        cout << HotDogStand::standId << " " << HotDogStand::hotDogSellAmount << endl;
    }

    int HotDogStand::thisStandSoldAmount()
    {
        return HotDogStand::hotDogSellAmount;
    }

    int HotDogStand::allStandSoldAmount()
    {
        return HotDogStand::totalSellAmount;
    }

## [Design Month Class](https://github.com/jimmy1010ww/NTUST_109-2_ODD/tree/main/CS3005301HW05/TS0502)
- main.cpp

    #include <iostream>
    #include "Month.h"

    using namespace std;

    int main(void)
    {
        Month month1, month2(2), month3('M','a','r'), month4, month5, month6;
        month4 = month3.nextMonth();
        month5.inputInt();
        month6.inputStr();

        cout << "Month1 = ";
        month1.outputInt();
        cout << ' ';
        month1.outputStr();
        cout << endl;

        cout << "Month2 = ";
        month2.outputInt();
        cout << ' ';
        month2.outputStr();
        cout << endl;

        cout << "Month3 = ";
        month3.outputInt();
        cout << ' ';
        month3.outputStr();
        cout << endl;

        cout << "Month4 = ";
        month4.outputInt();
        cout << ' ';
        month4.outputStr();
        cout << endl;

        cout << "Month5 = ";
        month5.outputInt();
        cout << ' ';
        month5.outputStr();
        cout << endl;

        cout << "Month6 = ";
        month6.outputInt();
        cout << ' ';
        month6.outputStr();
        cout << endl;
        return 0;
    }        

- Month.h

    #ifndef Month_H
    #define Month_H
    #define MONTH_LEN 12		//one year have 12 months
    #define MONTH_ABBREVIATION_LEN 3		//abbreviation month lenth
    #include <iostream>
    #include <string>

    using namespace std;

    class Month
    {
    public:
        Month();
        Month(char first, char second, char third);
        Month(int monthInt);

        void inputInt();
        void inputStr();
        void outputInt();
        void outputStr();
        Month nextMonth();
    private:
        int month;
    };

    #endif // !Month_H

- Month.cpp

    #include "Month.h"

    const string MONTH_NAME[MONTH_LEN] = {"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};

    Month::Month()
    {
        Month::month = 1;
    }

    Month::Month(char first, char second, char third)
    {
        if (first == 'J' && second == 'a' && third == 'n')
            Month::month = 1;
        else if (first == 'F' && second == 'e' && third == 'b')
            Month::month = 2;
        else if (first == 'M' && second == 'a' && third == 'r')
            Month::month = 3;
        else if (first == 'A' && second == 'p' && third == 'r')
            Month::month = 4;
        else if (first == 'M' && second == 'a' && third == 'y')
            Month::month = 5;
        else if (first == 'J' && second == 'u' && third == 'n')
            Month::month = 6;
        else if (first == 'J' && second == 'u' && third == 'l')
            Month::month = 7;
        else if (first == 'A' && second == 'u' && third == 'g')
            Month::month = 8;
        else if (first == 'S' && second == 'e' && third == 'p')
            Month::month = 9;
        else if (first == 'O' && second == 'c' && third == 't')
            Month::month = 10;
        else if (first == 'N' && second == 'o' && third == 'v')
            Month::month = 11;
        else if (first == 'D' && second == 'e' && third == 'c')
            Month::month = 12;
        else
            Month::month = 1;
    }

    Month::Month(int monthInt)
    {
        if (monthInt < 1 || monthInt > 12)
        {
            Month::month = 1;
        }
        else
        {
            Month::month = monthInt;
        }

    }

    void Month::inputInt()
    {
        int x = 0;
        cin >> x;
        if (x < 1 || x > 12)
        {
            Month::month = 1;
        }
        else
        {
            Month::month = x;
        }
    }

    void Month::inputStr()
    {
        char inputMonth[MONTH_ABBREVIATION_LEN];
        for (size_t i = 0; i < MONTH_ABBREVIATION_LEN; i++)
        {
            cin >> inputMonth[i];
        }

        int count = 0;
        for (size_t i = 0; i < MONTH_LEN; i++)
        {
            for (size_t j = 0; j < MONTH_ABBREVIATION_LEN; j++)
            {

                if (inputMonth[j] == MONTH_NAME[i][j])
                {
                    count++;
                }
            }
            if (count == 3)
            {
                Month::month = ((i == 0) ? 1 : i + 1);
            }
            count = 0;
        }

    }

    void Month::outputInt()
    {
        cout << Month::month;
    }

    void Month::outputStr()
    {
        cout << MONTH_NAME[(Month::month - 1) == 0 ? 0 : (Month::month - 1)];

    }

    Month Month::nextMonth()
    {
        int nextmonth = Month::month + 1;
        if (Month::month + 1 == 13)
        {
            return Month(1);
        }
        else
        {
            return Month(nextmonth);
        }
    }