Free C++ Institute CPA Exam Questions (page: 14)

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

#include <iostream>

using namespace std;

class A
{
public:
virtual void Print(){ cout<<"A";}
};
class B:public A
{
public:
void Print(){ cout<< "B";}
};
int main()
{
A *obj;
A ob1;
obj = &ob1;
obj?>Print();
B ob2;
obj = &ob2;
obj?>Print();
}

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

#include <iostream>
#include <sstream>
#include <string>

using namespace std;

int main(void)
{
string s;
s = "Test";
s.resize (s.size() ? 1);
cout<<s<<" "<<s.size();

return 0;
}

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

#include <iostream>
using namespace std;


class A {
public:
int x;
A() { x=0;}
};


class B : public A {
public:
B() { x=1;}
};


class C : private B {
public:
C() { x=2;}
};


int main () {
C c1;
cout << c1.x;
return 0;
}

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

#include <iostream>
#include <string>
using namespace std;


class A {
public:
A() { cout << "A no parameters";}
A(string s) { cout << "A string parameter";}
A(A &a) { cout << "A object A parameter";}
};


class B : public A {
public:
B() { cout << "B no parameters";}
B(string s) { cout << "B string parameter";}
B(int s) { cout << "B int parameter";}
};


int main () {
A a2("Test");
B b1(10);
B b2(b1);
return 0;
}