C++ Institute CPA - C++ Certified Associate Programmer : CPA-21-02

What happens when you attempt to compile and run the following code?
#include <iostream>
#include <string>
using namespace std;
class A {
int x;
protected:
int y;
public:
int z;
};
class B : private A {
string name;
public:
void set() {
x = 1;
}
void Print() {
cout << x;
}
};
int main () {
B b;
b.set();
b.Print();
return 0;
}

• A. It prints: ?123
• B. It prints: 123
• C. Compilation error
• D. It prints: 1

What is the output of the program?
#include <iostream>
using namespace std;
#define SQR(x)(x*x)
int main(int argc, char *argv[]) {
int x, y=2;
x = SQR(y);
cout << x << ", " <<y;
return 0;
}

• A. It prints: 4, 2
• B. It prints: 3, 2
• C. It prints: 3, 3
• D. It prints: 9, 2

If there is one, point out an error in the program
#include <iostream>
using namespace std;
int main()
{
int i=1;
for(;;)
{
cout<<i++;
if(i>5)
break;
}
return 0;
}

• A. Error in "if" statement
• B. Error in "for" loop
• C. No error
• D. Error in break statement

What happens if character 3 is entered as input?
#include <iostream>
using namespace std;
class A {
public:
int i;
};
int main () {
int c;
A obj;
obj.i = 5;
cin >> c;
try
{
switch (c)
{
case A. throw 20;
case B. throw 5.2f;
case C. throw obj;
default: cout<<"No exception";
}
}
catch (int e)
{ cout << "int exception. Exception Nr. " << e; }
catch (A e)
{ cout << "object exception. Exception Nr. " << e.i; }
catch (...)
{ cout << "An exception occurred."; }
return 0;
}

• A. It prints: No exception
• B. It prints: object exception. Exception Nr. 5
• C. It prints: int exception. Exception Nr.
• D. It prints: An exception occurred

What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
#include <iostream>
using namespace std;
class First
{
public:
void Print(){ cout<<"from First";}
};
int main()
{
First t[2];
for (int i=0; i<2; i++)
t[i].Print();
}

• A. It prints: from First
• B. Runtime error.
• C. It prints: from Firstfrom First
• D. Compilation error