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C++ Certified Associate Programmer Questions 86–90 (page: 19)

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

#include <iostream>

using namespace std;

int op(int x, int y)
{
return x?y;
}


int op(int x, float y)
{
return x+y;
}


int main()
{
int i=1, j=2, k, l;
float f=0.23;
k = op(i, j);
l = op(j, f);
cout<< k << "," << l;
return 0;
}

Which of the following statements are correct?

Which code, inserted at line 15, generates the output "5 Bob"?

#include <iostream>
#include <string>
using namespace std;
class B;
class A {
int age;
public:
A () { age=5; };
friend void Print(A &ob, B &so);
};
class B {
string name;
public:
B () { name="Bob"; };
//insert code here
};


void Print(A &ob, B &so) {
cout<<ob.age << " " << so.name;
}


int main () {
A a;
B b;
Print(a,b);
return 0;
}

What is the output of the program if characters 't', 'e', 's' and 't' enter are supplied as input?

#include <iostream>
#include <string>

using namespace std;

int main()
{
string s;
getline( cin, s );
cout << s << " " << s.length();
return( 0 );
}

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;
}