Question

C++

class derivedFromTemp: public temp;
{public:
   void print();
   void setZ(double);
   double getZ();
   double power() const; //return X to power of Z assume getX and setX in temp class.
  
   drivedFromTemp();
   derivedFromTemp (string, double, double);

Private:
   double z;
};

A. Correct errors, if any, after that write difinition of the member function of the class derivedFromTemp.

Answer 1

Hi,

Please find below the answer-

1. Errors in the code-

a) Semi-colon is not required in the derived class. Remove the semi-colon and the code will work.

class derivedFromTemp: public temp;

b) The access modifier is defined as "Private" which is incorrect. Instead of that "private" keyword needs to be used.

Private: private:

double z; -- >>> double z;

c) Need to include library for pow function to calculate power. The library that needs to be included is math.h

#include <iostream>
#include <math.h>

d) Need to correct the spelling mistake while defining the non-parameterized constructor.

drivedFromTemp(); ---->> derivedFromTemp();

2. Correct code with function definitions-

#include <iostream>
#include <math.h>

using namespace std;
class temp {
public:
double x;
};
class derivedFromTemp: public temp
{public:
void print();
void setZ(double);
double getZ();
double power() const; //return X to power of Z assume getX and setX in temp class.
derivedFromTemp();
derivedFromTemp (string , double, double );
private:
double z;
};
void derivedFromTemp::print(){
cout<<"x to the power of z is"<<power();
}
void derivedFromTemp::setZ(double m){
z=m;
}
double derivedFromTemp::getZ(){
return z;
}
double derivedFromTemp::power() const{
double val;
val=pow(x,z);
return val;
}
derivedFromTemp::derivedFromTemp (string s, double d1, double d2 ){
x=d1;
z=d2;
}
int main()
{
cout << "Hello World" << endl;

return 0;
}

Screenshot-

오codingground ANew Project on cpp 4jq0WLAj 다+《 Execute lep Embed main.cppx I.lı Result 白白Home #include iostream» #include Hello World 설 main.cpp <math.h> 4 using namespace std; 5 class temp t public: double x; 7 9 class derivedFromTemp: public temp 10 (public: void print); void setZ(double); double getz(); double power) const; //return X to power of Z assume 12 13 getx and setX in temp class. 15 HerivedFromTemp); 16 17 private: 18 19 }; 20 void derivedFromTemp::print() 21 derivedFromTemp (string, double, double ); double z; cout<<"x to the power of z is"<<power() 23 void derivedFromTemp::setZ(double m) 24 25 26 double derivedFromTemp: :getz) 27 Z-m; return z; 29 double derivedFromTemp: power) const 30 double val;

Thanks and Regards,

Vinay Singh