[Solved] What will be the output of the following C# code?try { throw new Exception("Error"); } catch (Exception ex) { Console.WriteLine(ex.StackTrace == null ? "No stack trace" : "Has stack trace"); throw; } | C Sharp (C#)

C Sharp (C#) - Exception Handling

What will be the output of the following C# code?

try {
  throw new Exception("Error");
} catch (Exception ex) {
  Console.WriteLine(ex.StackTrace == null ? "No stack trace" : "Has stack trace");
  throw;
}

ANo stack trace

BCompilation error

CHas stack trace

DRuntime error without message

Step-by-Step Solution

Solution:

Step 1: Analyze exception throwing and catching
The code throws an exception, catches it, and prints whether the stack trace is null or not.
Step 2: Understand stack trace presence
When an exception is thrown, it has a stack trace. Inside the catch block, ex.StackTrace is not null, so "Has stack trace" is printed.
Final Answer:
Has stack trace -> Option C
Quick Check:
Stack trace presence = B [OK]

Quick Trick: Exception stack trace is set on throw, not null inside catch [OK]

Common Mistakes:

MISTAKES

Assuming stack trace is null inside catch
Confusing output with error messages
Expecting compilation errors

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More C Sharp (C#) Quizzes

What will be the output of the following C# code?

Step 1: Analyze exception throwing and catching

Step 2: Understand stack trace presence

Final Answer:

Quick Check:

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