[Solved] Identify the error in this code snippet:try { // some code } catch (Exception ex) { Console.WriteLine("Error caught"); } catch (ArgumentNullException ex) { Console.WriteLine("Null argument"); } | C Sharp (C#)

C Sharp (C#) - Exception Handling

Identify the error in this code snippet:

try {
  // some code
} catch (Exception ex) {
  Console.WriteLine("Error caught");
} catch (ArgumentNullException ex) {
  Console.WriteLine("Null argument");
}

AArgumentNullException catch block unreachable

BSyntax error in catch blocks

CMissing finally block

DNo error

Step-by-Step Solution

Solution:

Step 1: Analyze catch block order
The general Exception catch block comes before the more specific ArgumentNullException catch block.
Step 2: Understand catch block reachability
Since ArgumentNullException inherits from Exception, the first catch block catches all exceptions, making the second unreachable.
Final Answer:
ArgumentNullException catch block unreachable -> Option A
Quick Check:
Specific catch must come before general catch [OK]

Quick Trick: Place specific exceptions before general ones in catch [OK]

Common Mistakes:

MISTAKES

Placing general catch before specific
Ignoring unreachable code warnings

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More C Sharp (C#) Quizzes

Identify the error in this code snippet:

Step 1: Analyze catch block order

Step 2: Understand catch block reachability

Final Answer:

Quick Check:

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