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;

}

1. It prints: A A

2. It prints: B B

3. It prints: A B

4. 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);

};

bool complex::operator == (complex &t){ if((this?>re == t.re) && (this?>im == t.im)) return true;

else

return false;

}

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”

int main(){

1. It prints:”3210”

2. It prints: ”3210?1”

3. None of these

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;

}

1. It will print: Helloworld

2. It will print: Hello

3. It will print: world

4. 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;

   }

   
   

   1. 3

   2. 5

   3. 4

      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()

      

   4. 5

{

string s1[]= {"How" , "to" };

s1[0].swap(s1[1]);

for (int i=0; i<2; i++) { cout << s1[i];

}

return( 0 );

}

1. It prints: Hoto

2. It prints: toHow

3. It prints: Ht

4. 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;

}

};

1. public

2. private

3. protected

4. None of these

Answer: C

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