C++ interview questions part 19
C++ interview questions part 19
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Total Questions: 20
1. If inner catch block is unable to handle the exception thrown then__________
Correct Answer is : arg()
2. In nested try catch blocks, if both inner and outer catch blocks are unable to handle the exception thrown, then ______________
Correct Answer is : 1.03038
3. Which function is invoked when an unhandled exception is thrown?
Correct Answer is : Used to construct a complex number from magnitude and phase angle
4. How one can restrict a function to throw particular exceptions only?
Correct Answer is : Complex number with magnitude 5.83095 and phase angle 1.03038 is: (3,5)
5. Which function is invoked when we try to throw an exception that is not supported by a function?
Correct Answer is : norm()
6. Return type of uncaught_exception() is________________
Correct Answer is : 25
7. What is the output of the following C++ code?
#include
using namespace std;
int main()
{
int var = -12;
try {
cout<<"Inside try\n";
if (var < 0)
{
throw var;
cout<<"After throw\n";
}
}
catch (int var ) {
cout<<"Exception Caught\n";
}
cout<<"After catch\n";
return 0;
}
Correct Answer is : conj()
8. What is the output of the following C++ code?
#include
using namespace std;
int main()
{
int var = -12;
try {
cout<<"Inside try\n";
if (var < 0)
{
throw var;
cout<<"After throw\n";
}
}
catch (char var ) {
cout<<"Exception Caught\n";
}
cout<<"After catch\n";
return 0;
}
Correct Answer is : Conjugate of 3+(4)i is: 3+(-4)i
9. What is the output of the following C++ code?
#include
using namespace std;
int main()
{
try
{
try
{
throw 20;
}
catch (int n)
{
cout << "Inner Catch\n";
}
}
catch (int x)
{
cout << "Outer Catch\n";
}
return 0;
}
Correct Answer is : Used to calculate the projection of a complex number
10. What is the output of the following C++ code?
#include
using namespace std;
int main()
{
try
{
try
{
throw 20;
}
catch (char n)
{
cout << "Inner Catch\n";
}
}
catch (int x)
{
cout << "Outer Catch\n";
}
return 0;
}
Correct Answer is : proj(3,4) : (3,4)
11. What is the output of the following C++ code?
#include
using namespace std;
int main()
{
try
{
try
{
throw 20;
}
catch (int n)
{
cout << "Inner Catch\n";
throw;
}
}
catch (int x)
{
cout << "Outer Catch\n";
}
return 0;
}
Correct Answer is : To calculate the log of a complex number
12. Which of the following is true about exception handling in C++? i) There is a standard exception class in C++ similar to Exception class in Java. ii) All exceptions are unchecked in C++, i.e., the compiler does not checks if the exceptions are caught or not. iii) In C++, a function can specify the list of exceptions that it can throw using comma separated list like following. void fun(int a, char b) throw (Exception1, Exception2, ..)
Correct Answer is : (1.60944,0.927295)
13. What is meant by exception specification?
Correct Answer is : (3.85374,-27.0168)
14. Identify the correct statement about throw(type).
Correct Answer is : complex
15. What will happen when a programs throws any other type of exception other than specified?
Correct Answer is : complex(3,4)
16. What do you mean by “No exception specification”?
Correct Answer is : (6.12132, 3.70711)
17. Which operations don’t throw anything?
Correct Answer is : cartesian
18. To where does the program control transfers when the exception is arisen?
Correct Answer is : 2
19. Which keyword is used to check exception in the block of code?
Correct Answer is : literals
20. What will happen when the exception is not caught in the program?
Correct Answer is : all of the mentioned
