CPP-Institute



            CPA







            CPA - C++ Certified Associate Programmer










                                   https://killexams.com/pass4sure/exam-detail/CPA











                  QUESTION: 213

                  What happens when you attempt to compile and run the following code?
                  #include <iostream>

                  using namespace std;
                  class A {
                  public :
                  void print()  {
                  cout << "A ";
                  }
                  };
                  class B {
                  public :
                  void print()  {
                  cout << "B ";
                  }
                  };
                   int main() {
                   B sc[2];
                   B *bc = (B*)sc;
                  for (int i=0; i<2;i++)
                  (bc++)->print();
                   return 0;
                   }


                  A. It prints: A A
                  B. It prints: B B
                  C. It prints: A B
                  D. It prints: B A


                  Answer: B


                  QUESTION: 214

                  What happens when you attempt to compile and run the following code?
                  #include <iostream>
                  #include <string>
                  using namespace std;
                   class complex{
                  double re;
                   double im;
                   public:
                   complex() : re(1),im(0.4) {}
                  bool operator==(complex &t);
                  };










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                  bool complex::operator == (complex &t){
                   if((this?>re == t.re) && (this?>im == t.im))
                   return true;
                  else
                   return false;
                  }
                   int main(){
                   complex c1,c2;
                  if (c1==c2)
                   cout << "OK";
                  else {
                  cout << "ERROR";
                  }
                  }


                  A. It prints: OK
                  B. It prints: ERROR
                  C. Compilation error
                  D. Runtime error.


                  Answer: A


                  QUESTION: 215
                  What happens when you attempt to compile and run the following code?
                   #include <iostream>

                  using namespace std;
                  int main()
                  {
                  int i = 4;
                  while(i >= 0) {
                  cout<<i;

                  i??;
                  }

                  return 0;
                  }


                  A. It prints:”43210”
                  B. It prints:”3210”
                  C. It prints: ”3210?1”
                  D. None of these












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                  Answer: A


                  QUESTION: 216
                  What will happen when you attempt to compile and run the following code?
                  #include <iostream>

                  using namespace std;
                  #define A 1
                  int main()
                  {
                  #if A
                  cout<<"Hello";
                  #endif
                  cout<<"world";
                   return 0;
                   }


                  A. It will print: Helloworld
                  B. It will print: Hello
                  C. It will print: world
                  D. It will print: 0


                  Answer: A


                  QUESTION: 217
                  What will be the output of the program?
                   #include <iostream>
                  #include <string>
                   using namespace std;
                   int fun(int);
                  int main()
                  {
                  float k=3;
                  k = fun(k);
                  cout<<k;

                  return 0;
                  }
                   int fun(int i)
                  {
                  i++;
                  return i;
                  }











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                  A. 3
                  B. 5
                  C. 4
                  D. 5


                  Answer: C


                  QUESTION: 218

                  What happens when you attempt to compile and run the following code?
                   #include <iostream>
                   using namespace std;
                   int main()
                  {
                  const char *s;
                  char str[] = "Hello";
                  s = str;
                  while(*s) {
                  cout << *s++;
                  }
                  return 0;
                   }


                  A. It prints: el
                  B. It prints: Hello
                  C. It prints: H
                  D. It prints: o


                  Answer: B


                  QUESTION: 219

                  What happens when you attempt to compile and run the following code?
                  #include <iostream>
                  #include <string>

                   using namespace std;
                  int main()
                  {
                  string s1[]= {"How" , "to" };
                   s1[0].swap(s1[1]);
                  for (int i=0; i<2; i++) {
                  cout << s1[i];










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                   }
                   return( 0 );
                  }


                  A. It prints: Hoto
                  B. It prints: toHow
                  C. It prints: Ht
                  D. It prints: to


                  Answer: B


                  QUESTION: 220
                  What will variable "y" be in class B?
                  class A {
                  int x;
                  protected:
                  int y;
                   public:
                   int age;
                   };

                  class B : public A {
                   string name;
                  public:
                  void Print() {
                   cout << name << age;
                  }
                  };


                  A. public
                  B. private
                  C. protected
                  D. None of these


                  Answer: C





















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