C++ | Exception Handling | Question 7

#include <iostream> 
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; 
} 

(A)

Outer Catch

(B)

Inner Catch

(C)

Inner Catch
Outer Catch

(D) Compiler Error

Answer: (C)

Explanation: The statement ‘throw;’ is used to re-throw an exception. This is useful when a function can handles some part of the exception handling and then delegates the remaining part to the caller. A catch block cleans up resources of its function, and then rethrows the exception for handling elsewhere.

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