C Sharp (C#) - Collections
What happens if you try to add duplicate keys using a Dictionary initializer in C#?
What happens if you try to add duplicate keys using a Dictionary initializer in C#?
hard🧠 Conceptual Q10 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand Dictionary initializer behavior
Duplicate keys in initializer cause runtime exceptions, not compile errors.Step 2: Exception type
ArgumentException is thrown at runtime when duplicate keys are added.Final Answer:
Runtime exception is thrown -> Option BQuick Check:
Duplicate keys cause runtime exception = D [OK]
Quick Trick: Duplicate keys cause runtime exception, not overwrite [OK]
Common Mistakes:
MISTAKES- Assuming last value overwrites silently
- Expecting compile-time error
- Thinking duplicates are ignored
Master "Collections" in C Sharp (C#)
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