Free C++ Institute CPA-21-02 Practice Exam with Questions & Answers | Set: 4

If there is one, point out an error in the program

#include <iostream>

using namespace std;

int main()

{

int c = 'a';

switch(i)

{

case '2':

cout<<"OK";

case '1':

cout<<"Error";

default:

break;

}

return 0;

}

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

#include <iostream>

#include <string>

using namespace std;

class A {

protected:

int y;

public:

int x;

int z;

A() { x=1; y=2; z=3; }

A(int a, int b) : x(a), y(b) { z = x * y;}

void Print() {

cout << z;

}

};

int main () {

A a(2,5);

a.Print();

return 0;

}

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

#include <iostream>

using namespace std;

class BaseC

{

public:

int *ptr;

BaseC() { ptr = new int(10);}

BaseC(int i) { ptr = new int(i); }

~BaseC() { delete ptr; }

};

void fun(BaseC x);

int main()

{

BaseC *o = new BaseC(5);

fun(*o);

}

void fun(BaseC x) {

cout << "Hello:"<<*x.ptr;

}

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

#include <iostream>

using namespace std;

void fun(int*);

int main()

{

int *x;

int i=2;

x=&i;

fun(x);

cout<<i;

return 0;

}

void fun(int *i)

{

*i = *i * *i;

}

What is the output of the program?

#include <iostream>

using namespace std;

class BaseC

{

int i;

public:

BaseC() { i=?1;}

BaseC(int i) { i=i; }

void seti(int a) { i = a; };

void Print() { cout << i; }

};

int main()

{

BaseC *o = new BaseC();

o?>seti(10);

o?>Print();

}

What is not inherited from the base class?

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

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

#include <iostream>

using namespace std;

int main()

{

long int x,y=10;

double d;

d = 3.99;

x=(int) d;

cout << x <<", ";

d=float (y);

cout << d;

return 0;

}

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

#include <iostream>

using namespace std;

class First

{

public:

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

};

class Second:public First

{

public:

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

};

void fun(First *obj);

int main()

{

First FirstObject;

fun(&FirstObject);

Second SecondObject;

fun(&SecondObject);

}

void fun(First *obj)

{

obj?>Print();

}

What will the variable "age" be in class B?

class A {

int x;

protected:

int y;

public:

int age;

};

class B : private A {

string name;

public:

void Print() {

cout << name << age;

}

};