Free Practice Questions for C++ Institute CPA-21-02 Exam

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;

}

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

#include

#include

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;

}

int main(){

complex c1,c2;

if (c1==c2)

cout << "OK";

else {

cout << "ERROR";

}

}

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

#include

using namespace std;

int main()

{

int i = 4;

while(i >= 0) {

cout<

i??;

}

return 0;

}

Which code line instead of the comment below will cause the program to produce the expected output?

Which code line inserted instead of the comment below will fix the program so that it produces the expected output and does not cause any memory leak?