Question

IN C++ PLEASE

Write a class LuckyNumberChecker.

Include a constructor that accepts an integer named luckyDivisor

Add a virtual method named checkNumber that accept an integer named number and returns a string

If the number argument is evenly divisible by the luckyDivisor, return "This number is lucky"

otherwise, if the number is odd, return "This number might be lucky"

otherwise, return "this number is not lucky"

Write a class DoublyLuckyNumberChekcer that extends LuckyNumberChecker

Add a constructor that accepts two integers, luckyDivisor and superLuckyDivisor. Pass luckyDivisor to the LuckyNumberChecker constructor.

Override the checkNumber method to return "This number is super lucky" if it is evenly divisible by the superLuckyDivisor, otherwise return the same values as LuckyNumberChecker would have.

Write unit tests

Answer 1

#include <iostream>
#include <string>
#include <cassert>

using namespace std;

class LuckyNumberChecker{
private:
    int luckyDivisor;

public:
    //Constructor
    LuckyNumberChecker(int _luckyDivisor) : luckyDivisor(_luckyDivisor){}

    virtual string checkNumber(int num){
        if(num % luckyDivisor == 0)
            return "This number is lucky";
        else if(num % 2 == 1)
            return "This number might be lucky";
        else
            return "This number is not lucky";
    }
};

class DoublyLuckyNumber : public LuckyNumberChecker{
private:
    int superLuckyDivisor;

public:
    DoublyLuckyNumber(int _luckyDivisor, int _superLuckyDivisor) :  LuckyNumberChecker(_luckyDivisor),
                                                                    superLuckyDivisor(_superLuckyDivisor){}

    string checkNumber(int num) override {
        if(num % superLuckyDivisor == 0)
            return "This number is super lucky";
        else
            return LuckyNumberChecker::checkNumber(num);
    }
};

int main(){
    DoublyLuckyNumber c1(5, 7);

    /*Unit tests*/
    //Test for super lucky number
    assert(c1.checkNumber(21) == "This number is super lucky");

    //Test for if condition
    assert(c1.checkNumber(10) == "This number is lucky");

    //Test for else-if condition
    assert(c1.checkNumber(9) == "This number might be lucky");

    //Test for else condition
    assert(c1.checkNumber(6) == "This number is not lucky");

    cout << "All test passed!";

    return 0;
}

OUTPUT: