Programming with CPP, General Programming

Question: Consider the following code:
class A { typedef int I; // private member I f(); friend I g(I); static I x; };
Which of the following are valid:
A
A::I A::f() { return 0; }

B
A::I g(A::I p = A::x);

C
A::I g(A::I p) { return 0; }

D
A::I A::x = 0;

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Question: In the given sample Code, is the constructor definition valid?
class someclass { int var1, var2; public: someclass(int num1, int num2) : var1(num1), var2(num2) { } };
A
Yes, it is valid

B
No, we cannot assign values like this

C
No, the parenthesis cannot be empty

D
No, the parenthesis cannot be empty

Note: Not available
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Question: Consider the following code:class BaseException
{
public:
   virtual void Output()
   {
      cout << "Base Exception" << endl;
   }
};

class DerivedException : public BaseException
{
public:
   virtual void Output()
   {
      cout << "Derived Exception" << endl;
   }
};

void ExceptionTest()
{
   try
   {
      throw DerivedException();
   }
   catch (BaseException& ex)
   {
      ex.Output();
   }
   catch (...)
   {
      cout << "Unknown Exception Thrown!" << endl;
   }
}
Invoking Exception Test will result in which output?
ABase Exception

BDerived Exception

CUnknown Exception Thrown

DNo Output will be generated

Note: Not available

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Question: Consider the following code:
#define SQ(a) (a*a) int answer = SQ(2 + 3);
What will be the value of answer after the above code executes?
A
10

B
11

C
25

D
13

Note: Not available
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Question: Consider the following class hierarchy:
class Base { } class Derived : private Base { }
Which of the following are true?
A
The relation between Base and Derived can be described as: Base is a Derived

B
The relation between Base and Derived can be described as: Base has a Derived

C
Derived can access private member functions of Base

D
Derived can access public and protected member functions of Base

Note: Not available
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Question: Consider the sample code given below and answer the question that follows:
char **foo; /* Missing code goes here */ for(int i = 0; i < 200; i++) { foo[i] = new char[100]; }
Referring to the sample code above, what is the missing line of code?
A
foo = new *char[200];

B
foo = new char[200];

C
foo = new char[200]*;

D
foo = new char*[200];

E
foo = new char[][200];

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Question: What will be the output of the following code?class A
{
public:
      A():pData(0){}
      ~A(){}
      int operator ++()
      {
            pData++;
            cout << "In first ";
            return pData;
      }
      int operator ++(int)
      {
            pData++;
            cout << "In second ";
            return pData;
      }
private:
      int pData;
};
void main()
{
     A a;
     cout << a++;
     cout << ++a;
}
AIn first 1 In second 2

BIn second 1 In first 2

CIn first 0 In second 2

DIn second 0 In first 2

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Question: Which of the following are true about class member functions and constructors?
A
A constructor can return values but a member function cannot

B
A member function can declare local variables but a constructor cannot

C
A member function can declare local variables but a constructor cannot

D
A constructor can declare local variables but a member function cannot

E
A member function can throw exceptions but a constructor cannot

Note: Not available
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Question: How many arguments can be passed to an overloaded binary operator?
A
4

B
3

C
2

D
1

E
0

Note: Not available
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Question: What will happen when the following code is compiled and executed?
#include<iostream> using namespace std; class myclass { private: int number; public: myclass() { number = 2; } int &a() { return number; } }; int main() { myclass m1,m2; m1.a() = 5; m2.a() = m1.a(); cout << m2.a(); return 0; }
A
Compile time errors will be generated because right hand side of expressions cannot be functions

B
The printed output will be 5

C
The printed output will be 2

D
The printed output will be undefined

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Question: Consider the following code:
class A { typedef int I; // private member I f(); friend I g(I); static I x; };
Which of the following are valid:

Question: In the given sample Code, is the constructor definition valid?
class someclass { int var1, var2; public: someclass(int num1, int num2) : var1(num1), var2(num2) { } };

Question: Consider the following code:
#define SQ(a) (a*a) int answer = SQ(2 + 3);
What will be the value of answer after the above code executes?

Question: Consider the following class hierarchy:
class Base { } class Derived : private Base { }
Which of the following are true?

Question: Consider the sample code given below and answer the question that follows:
char **foo; /* Missing code goes here */ for(int i = 0; i < 200; i++) { foo[i] = new char[100]; }
Referring to the sample code above, what is the missing line of code?

Question: Which of the following are true about class member functions and constructors?

Question: How many arguments can be passed to an overloaded binary operator?

Question: Consider the following code:class A { typedef int I; // private member I f(); friend I g(I); static I x; }; Which of the following are valid:

Question: In the given sample Code, is the constructor definition valid?class someclass { int var1, var2; public: someclass(int num1, int num2) : var1(num1), var2(num2) { } };

Question: Consider the following code:#define SQ(a) (a*a) int answer = SQ(2 + 3); What will be the value of answer after the above code executes?

Question: Consider the following class hierarchy:class Base { } class Derived : private Base { } Which of the following are true?

Question: Consider the sample code given below and answer the question that follows:char **foo; /* Missing code goes here */ for(int i = 0; i < 200; i++) { foo[i] = new char[100]; } Referring to the sample code above, what is the missing line of code?

Question: Which of the following are true about class member functions and constructors?

Question: How many arguments can be passed to an overloaded binary operator?

Question: Consider the following code:
class A { typedef int I; // private member I f(); friend I g(I); static I x; };
Which of the following are valid:

Question: In the given sample Code, is the constructor definition valid?
class someclass { int var1, var2; public: someclass(int num1, int num2) : var1(num1), var2(num2) { } };

Question: Consider the following code:
#define SQ(a) (a*a) int answer = SQ(2 + 3);
What will be the value of answer after the above code executes?

Question: Consider the following class hierarchy:
class Base { } class Derived : private Base { }
Which of the following are true?

Question: Consider the sample code given below and answer the question that follows:
char **foo; /* Missing code goes here */ for(int i = 0; i < 200; i++) { foo[i] = new char[100]; }
Referring to the sample code above, what is the missing line of code?