C++ Institute C++ Certified Professional Programmer CPA Questions & Answers

• Question 11:

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

  #include

  #include

  using namespace std;

  class A {

  public:

  A() { cout << "A no parameters";}

  A(string s) { cout << "A string parameter";}

  A(A anda) { cout << "A object A parameter";}

  };

  class B : public A {

  public:

  B() { cout << "B no parameters";}

  B(string s) { cout << "B string parameter";}

  };

  int main () {

  A a1;

  A a2("Test");

  B b1("Alan");

  return 0;

  }

  A. It prints: A no parametersA string parameterA no parametersB string parameter

  B. It prints: A no parametersB string parameter

  C. It prints: B string parameter

  D. It prints: B no parameter

  Correct Answer: A

• Question 12:

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

  #include

  using namespace std;

  int main (int argc, const char * argv[])

  {

  int tab[5]={1,2,3};

  for (int i=0; i<5; i++)

  cout <

  return 0;

  }

  A. compilation fails

  B. It prints: 12300

  C. It prints: 12345

  D. It prints: 00000

  Correct Answer: B

• Question 13:

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

  #include

  using namespace std;

  class A {

  public:

  void Print(){ cout<<"A";}

  };

  class C:public A {

  public:

  virtual void Print()=0;

  };

  int main()

  {

  C obj3;

  obj3?>Print();

  }

  A. It prints: BB

  B. It prints: A

  C. It prints: AB

  D. Compilation error

  Correct Answer: D

• Question 14:

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

  #include

  using namespace std;

  int main (int argc, const char * argv[])

  {

  enum state { ok, error, warning};

  enum state s1, s2, s3;

  s1 = ok;

  s2 = warning;

  s3 = error;

  s4 = ok;

  cout << s1<< s2<< s3;

  return 0;

  }

  A. It will print:"123"

  B. compilation error

  C. It will print:"021"

  D. It will print:"132"

  Correct Answer: B

• Question 15:

  Which of the following is a user defined data type?

  1:

  struct person

  {

  char name[20];

  int age;

  };

  2:

  int l=2;

  3:

  enum color {red,blue, green};

  A.

  char c;

  B.

  1

  C.

  2

  D.

  3

  E.

  4

  Correct Answer: AC

• Question 16:

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

  #include

  using namespace std;

  class First

  {

  public:

  First() { cout << "Constructor";}

  ~First() { cout << "Destructor";}

  void Print(){ cout<<"from First";}

  };

  int main()

  {

  First FirstObject;

  FirstObject.Print();

  }

  A. It prints: Constructorfrom First

  B. It prints: Constructorfrom FirstDestructor

  C. It prints: Constructorfrom FirstDestructorDestructor

  D. Compilation error at line 16

  Correct Answer: B

• Question 17:

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

  #include

  using namespace std;

  int main()

  {

  int i = 5;

  cout<<"Hello World" << ++i;

  return 0;

  }

  A. It prints: Hello World6

  B. It prints: Hello

  C. It prints: World

  D. It prints: Hello World5

  Correct Answer: A

• Question 18:

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

  #include

  using namespace std;

  int fun(int x) {

  return 2*x;

  }

  int main(){

  int i;

  i = fun(1) || fun(2);

  cout << i;

  return 0;

  }

  A. It prints: 0

  B. It prints: 1

  C. It prints: -1

  D. Compilation error

  Correct Answer: B

• Question 19:

  Which code, inserted at line 8, generates the output "100"?

  #include

  using namespace std;

  int fun(int);

  int main()

  {

  int *x = new int;

  *x=10;

  //insert code here

  return 0;

  }

  int fun(int i)

  {

  return i*i;

  }

  A. cout << fun(*x) ;

  B. cout << fun(10);

  C. cout << fun(5) ;

  D. cout << fun(y) ;

  Correct Answer: AB

• Question 20:

  Which definitions are correct?

  A. int age;

  B. int double;

  C. char c;

  D. int char;

  Correct Answer: AC