QUESTION: 93

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

#include <iostream>

using namespace std;

int main()
{
int x=0;
int *ptr;

ptr = &x;
cout<<x<<" "<<*ptr;

return 0;
}

It prints: 0 0
It prints address of ptr
It prints: 1
It prints: 2

Answer(s): A

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Given:

#include <iostream>
#include <exception>
using namespace std;

int main () {
try
{
int * myarray= new int[1000];
}
catch (bad_alloc&)
{
cout << "Error allocating memory";
}
catch (exception& e)
{
cout << "Standard exception";
}
catch (...)
{
cout << "Unknown exception";
}
return 0;
}

What will happen if we use the operator “new” and the memory cannot be allocated?

It prints: Error allocating memory
It prints: Standard exception
It prints: Unknown exception
Compilation error

Answer(s): A

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QUESTION: 95

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

#include <iostream>

using namespace std;

struct {
int x;
char c;
union {
float f;
int i;
};
} s;

int main (int argc, const char * argv[])
{
s.x=10;
s.i=0;
cout << s.i << " " << s.x;
}

It prints: 0 10
It prints: 11
Compilation error
None of these

Answer(s): A

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QUESTION: 96

What is the output of the program?

#include <iostream>
#include <string>

using namespace std;

int main () {
string s1 = "Hello", s2 = "World";
s2 = s1 + s2;
cout << s2;
return 0;
}

It prints: Hello
It prints: HelloWorld
It prints: WorldHello
It prints: WorldHelloWorld

Answer(s): B

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QUESTION: 96