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C++ Certified Associate Programmer Questions 46–50 (page: 11)

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

#include <iostream>
using namespace std;

int main(){
int i = 1;
if (--i==1) {
cout << i;
} else {
cout << i-1;
}
return 0;
}

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

#include <iostream>

using namespace std;

void fun(int &i);


int main()
{
int i=2;
fun(i);
cout<<i;
return 0;
}


void fun(int &i)
{
i+=2;
}

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

#include <iostream>
using namespace std;

int fun(int x);

int main() {
cout << fun(0);
return 0;
}

int fun(int x) {
if(x > 0)
return fun(x-1);
else
return 100;
}

What is the output of the program if character 2 is supplied as input?

#include <iostream>

using namespace std;

int main () {
int c;
cin >> c;
try
{
switch (c)
{
case 1:
throw 20;
case 2:
throw 5.2f;
}
}
catch (int e)
{ cout << "int exception. Exception Nr. " << e; }
catch (float e)
{ cout << "float exception. Exception Nr. " << e; }
catch (...)
{ cout << "An exception occurred."; }
return 0;
}

What is the output of the program if character 4 is supplied as input?

#include <iostream>
using namespace std;
int main () {
int c;
cin >> c;
try
{
switch (c)
{
case 1:
throw 20;
case 2:
throw 5.2f;
case 3:
throw 'a';
default:
cout<<"No exception";
}
}
catch (int e)
{ cout << "int exception. Exception Nr. " << e; }
catch (float e)
{ cout << "float exception. Exception Nr. " << e; }
catch (...)
{ cout << "An exception occurred."; }
return 0;
}