[CPP] Chapter 9 Quiz/Assessment

Question 1

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template<class T>
void f(T &a)//LINE I
{
    cout << 1 + a << endl;
}
int main()
{
    int a = 1;
    f(a);//LINE II
    return 0;
}

  

runtime error at LINE II

 

  

program outputs: 1

 

  

program outputs: 3

 

  

compilation error in LINE II

 

  

program outputs: 2

 

  

compilation error in LINE I

 

 

Question 2

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template<class T>
void f(T &a)//LINE I
{
    cout << 1 + a << endl;
}
void f(double &a)//LINE II
{
    cout << 2 + a << endl;
}
int main()
{
    int a = 1.5;
    f(a);//LINE II
    return 0;
}

  

program outputs: 3.5

 

  

compilation error in LINE I

 

  

program outputs: 2.5

 

  

runtime error at LINE II

 

  

compilation error in LINE II

 

  

program outputs: 2

 

 

Question 3

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template<class T>
void f(T &a)//LINE I
{
    cout << 1 + a << endl;
}
void f(double &a)//LINE II
{
    cout << 2 + a << endl;
}
int main()
{
    double a = 1.5;
    f(a);//LINE II
    return 0;
}

  

program outputs: 3.5

 

  

runtime error at LINE II

 

  

program outputs: 2

 

  

compilation error in LINE II

 

  

compilation error in LINE I

 

  

program outputs: 2.5

 

 

Question 4

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template<class T>
void f(T &a)//LINE I
{
    cout << 1 + a << endl;
}
void f(double &a)
{
    cout << 2 + a << endl;
}
int main()
{
    double a = 1.5;
    f<float &>(a);//LINE II
    return 0;
}

  

program outputs: 2.5

 

  

runtime error at LINE II

 

  

program outputs: 3.5

 

  

compilation error in LINE II

 

  

program outputs: 2

 

  

compilation error in LINE I

 

 

Question 5

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template<class A>
void f(A &a)//LINE I
{
    cout << 1 + a << endl;
}
void f(double &a)//LINE II
{
    cout << 2 + a << endl;
}
int main()
{
    float a = 1.5;
    f<float &>(a);//LINE II
    return 0;
}

  

program outputs: 2

 

  

program outputs: 3.5

 

  

runtime error at LINE II

 

  

compilation error in LINE I

 

  

program outputs: 2.5

 

  

compilation error in LINE II

 

 

Question 6

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template <class T>
class Pocket {
    T    value;//LINE I
public:
    Pocket(T value):value(value) {}
};
int main()
{
    Pocket<double> a(7);
    cout << a.value << endl;//LINE II
    return 0;
}

  

program outputs: 7

 

  

program outputs: 7.0

 

  

compilation error in LINE II

 

  

compilation error in LINE I

 

  

runtime error at LINE II

 

  

program outputs: 0

 

 

Question 7

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template <class T>
class Pocket {
public:
    T    value;//LINE I
    Pocket(T value):value(value) {}
};
int main()
{
    Pocket<double> a(7);
    cout << a.value << endl;//LINE II
    return 0;
}

  

compilation error in LINE I

 

  

program outputs: 0

 

  

runtime error at LINE II

 

  

program outputs: 7.0

 

  

compilation error in LINE II

 

  

program outputs: 7

 

 

Question 8

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template <class T>
class Pocket {
public:
    T    value;
    Pocket(T value);
};
template<class T> 
Pocket::Pocket(T value):value(value) {}//LINE I
int main()
{
    Pocket<double> a(7);//LINE II
    cout << a.value << endl;
    return 0;
}

  

program outputs: 0

 

  

compilation error in LINE I

 

  

compilation error in LINE II

 

  

program outputs: 7.0

 

  

program outputs: 7

 

  

runtime error at LINE II

 

 

Question 9

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template <class T>
class Pocket {
public:
    T    value;
    Pocket(T value);
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}//LINE I
int main()
{
    Pocket<double> a(7);//LINE II
    cout << a.value << endl;
    return 0;
}

  

program outputs: 7

 

  

program outputs: 7.0000

 

  

runtime error at LINE II

 

  

compilation error in LINE II

 

  

compilation error in LINE I

 

  

program outputs: 0

 

 

Question 10

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template <typedef T>//LINE I
class Pocket {
public:
    T    value;
    Pocket(T value);
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}//LINE II
int main()
{
    Pocket<double> a(7);
    cout << a.value << endl;
    return 0;
}

  

compilation error, the reason is in LINE I

 

  

program outputs: 7.0000

 

  

runtime error at LINE II

 

  

program outputs: 7

 

  

compilation error in LINE II

 

  

program outputs: 0

 

 

Question 11

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
template <typename T>//LINE I
class Pocket {
public:
    T    value;
    Pocket(T value);
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}//LINE II
int main()
{
    Pocket<double> a(7);
    cout << a.value << endl;
    return 0;
}

  

compilation error, the reason is in LINE I

 

  

program outputs: 0

 

  

runtime error at LINE II

 

  

compilation error in LINE II

 

  

program outputs: 7

 

  

program outputs:7.0000

 

 

Question 12

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
class NothingSpecial {};
template <typename T>
class Pocket {
    T    value;//LINE I
public:
    Pocket() {}
    Pocket(T value);
    T getValue() { return value; }
    void add(T _Right) { value += _Right; }
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<double> a(7);
    Pocket<NothingSpecial> n;//LINE II
    a.add(3) ;
    cout << a.getValue() << ", ";
    a.add(3) ;
    cout << a.getValue();
    return 0;
}

  

compilation error in LINE I

 

  

program outputs: 10, 10

 

  

runtime error at LINE II

 

  

program outputs: 10, 13

 

  

program outputs: 7, 7

 

  

compilation error in LINE II

 

 

Question 13

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
class SomethingSpecial {};
template <typename T>
class Pocket {
    T    value;
public:
    Pocket() {}
    Pocket(T value);
    T getValue() { return value; }
    void add(T _Right) { value += _Right; }
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<double> a(7);//LINE I
    Pocket<SomethingSpecial> n;
    n.add(SomethingSpecial()) ;//LINE II
    cout << a.getValue() << ", ";
    a.add(3) ;
    cout << a.getValue();
    return 0;
}

  

compilation error, the reason is in LINE II

 

  

runtime error at LINE II

 

  

program outputs: 7, 7

 

  

compilation error, the reason is in LINE I

 

  

program outputs: 10, 13

 

  

program outputs: 7, 10

 

 

Question 14

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
using namespace std;
class SomethingSpecial {
public:
    double value;
    SomethingSpecial():value(0){}
    SomethingSpecial(double value): value(value){}
    SomethingSpecial operator+=(SomethingSpecial & _Right) { 
        SomethingSpecial result;
        result.value = value + _Right.value;
        return result;
    }
};
template <typename T>
class Pocket {
    T    value;
public:
    Pocket() {}
    Pocket(T value);
    T getValue() { return value; }
    void add(T _Right) { value += _Right; }
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<double> a(7);//LINE I
    Pocket<SomethingSpecial> n;
    n.add(SomethingSpecial()) ;//LINE II
    cout << a.getValue() << ", ";
    a.add(3) ;
    cout << a.getValue();
    return 0;
}

  

program outputs: 7, 10

 

  

program outputs: 10, 13

 

  

compilation error, the reason is in LINE I

 

  

runtime error at LINE II

 

  

compilation error, the reason is in LINE II

 

  

program outputs: 7, 7

 

 

Question 15

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
#include <string>
using namespace std;
template <class T>
class Pocket {
    T    _v;
public:
    Pocket() {}
    Pocket(T v): _v(v){}
    T getV() { return _v; }
    void add(T & a) { _v+=a; }
};
int main()
{
    Pocket<string>    a("Hello");
    string s(" world!");
    a.add(s);
    cout << a.getV() <<endl;
    return 0;
}

  

program will not compile

 

  

program will run without any output

 

  

program will display: Hello

 

  

program will display: Hello world!

 

 

Question 16

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
#include <string>
using namespace std;
template <typename T>
class Pocket {
    T    value;
public:
    Pocket() {}
    Pocket(T value);
    T getValue() { return value; }
    void add(T _Right) { value += _Right; }
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<string> a("Hi");
    string n("Maker");
    a.add(n) ;//LINE I
    cout << a.getValue() << ", ";
    a.add(3) ;//LINE II
    cout << a.getValue();
    return 0;
}

  

runtime error at LINE II

 

  

compilation error in LINE II

 

  

program outputs: Hi, Maker

 

  

program outputs: HiMaker,

 

  

compilation error in LINE I

 

  

program outputs: HiMaker, HiMaker

 

 

Question 17

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
#include <string>
using namespace std;
template <typename T>
class Pocket {
    T    value;
public:
    Pocket() {}
    Pocket(T value);
    T getValue() { return value; }
    void add(T _Right) { value += _Right; }
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<string> a("Hi");
    string n("Maker");
    a.add(n) ;//LINE I
    cout << a.getValue() << ", ";//LINE II
    cout << a.getValue();
    return 0;
}

  

program outputs: Hi, Maker

 

  

runtime error at LINE II

 

  

compilation error in LINE I

 

  

program outputs: HiMaker, HiMaker

 

  

compilation error in LINE II

 

  

program outputs: HiMaker,

 

 

Question 18

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
#include <string>
using namespace std;
template <typename T>
class Pocket {
    T    value;
public:
    Pocket() {}
    Pocket(T value);
    T getValue() { return value; }
    void add(T _Right) { value += _Right; }
    void add(string & _Right){value.insert(0, _Right);}
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<string> a("Hi");
    string n("Tech");
    a.add(n) ;//LINE I
    cout << a.getValue() << ", ";//LINE II
    cout << a.getValue();
    return 0;
}

  

compilation error in LINE I

 

  

program outputs: HiTech,

 

  

program outputs: Hi, Tech

 

  

runtime error at LINE I

 

  

program outputs: HiTech, HiTech

 

  

compilation error in LINE II

 

 

Question 19

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
#include <string>
using namespace std;
template <typename T>
class Pocket {
    T    value;
public:
    Pocket() {}
    Pocket(T value);
    T getValue() { return value; }
    void add(T _Right) { value += _Right; }
    friend ostream & operator<<(ostream & _os, const Pocket<T> & value) {
        _os<<value.value;    
        return _os; 
    }
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<string> a("Hi");
    string n("Tech");
    a.add(n) ;//LINE I
    cout << a << ", ";//LINE II
    cout << a;
    return 0;
}

 

  

program outputs: Hi, Tech

 

  

program outputs: HiTech,

 

  

program outputs: HiTech, HiTech

 

  

compilation error in LINE II

 

  

compilation error in LINE I

 

  

runtime error at LINE II

 

 

Question 20

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
#include <string>
using namespace std;
template <class Ty>
class Pocket {
    Ty    value;
public:
    Pocket() {}
    Pocket(Ty value);
    Ty getValue() { return value; }
    void add(Ty _Right) { value += _Right; }
    template <class Tx>
        Tx get(Tx _Right) { 
            return (Tx)(value) + _Right;//LINE I
        }
    friend ostream & operator<<(ostream & _os, const Pocket<Ty> & value) {
        _os<<value.value;    
        return _os; 
    }
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<string> a("Hi");
    string n("Tech");
    a.add(n) ;//LINE II
    cout << a << ", ";
    cout << a.get<double>(1);
    return 0;
}

  

program outputs: Hi, Tech

 

  

compilation error in LINE I

 

  

compilation error in LINE II

 

  

runtime error at LINE II

 

  

program outputs: HiTech, HiTech

 

  

program outputs: HiTech,

 

 

Question 21

1 / 1 pts

What will happen when you attempt to compile and run the following code?

#include <iostream>
#include <string>
using namespace std;
template <class Ty>
class Pocket {
    Ty    value;
public:
    Pocket() {}
    Pocket(Ty value);
    Ty getValue() { return value; }
    void add(Ty _Right) { value += _Right; }
    template <class Tx>
        Tx get(Tx _Right) { 
            return (Tx)(value) + _Right;//LINE I
        }
    friend ostream & operator<<(ostream & _os, const Pocket<Ty> & value) {
        _os<<value.value;    
        return _os; 
    }
};
template<class T> 
Pocket<T>::Pocket(T value):value(value) {}
int main()
{
    Pocket<int> a(7);
    cout << a << ", ";
    cout << a.get<double>(2);
    return 0;
}

  

runtime error at LINE II

 

  

program outputs: 7, 9

 

  

compilation error in LINE I

 

  

compilation error in LINE II

 

  

program outputs: 7,

 

  

program outputs: 7, 2

 

 

Question 22

1 / 1 pts

Which construction/keyword can be used to define the template type parameters? Choose all the correct answers.

template<static T>
Pocket<T>::Pocket(T v):_v(v) {}
template<typedef T>
Pocket<T>::Pocket(T v):_v(v) {}
template<typename T>
Pocket<T>::Pocket(T v):_v(v) {}
template<class T>
Pocket<T>::Pocket(T v):_v(v) {}
template<volatile T>
Pocket<T>::Pocket(T v):_v(v) {}

  

with the class keyword

 

  

with the static keyword

 

  

none of the above

 

  

with the typedef keyword

 

  

with the typename keyword

 

  

with the volatile keyword

 

Quiz Score: 22 out of 22