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What happens if a computed property uses duplicate keys in a dictionary comprehension-like scenario in C#?

hard🧠 Conceptual Q10 of 15
C Sharp (C#) - Properties and Encapsulation
What happens if a computed property uses duplicate keys in a dictionary comprehension-like scenario in C#?
AAll duplicates are stored as a list
BCompilation error due to duplicate keys
CRuntime exception is thrown
DThe last key-value pair overwrites previous duplicates
Step-by-Step Solution
Solution:
  1. Step 1: Understand dictionary behavior with duplicate keys

    In C#, adding duplicate keys to a dictionary overwrites the previous value.
  2. Step 2: Apply to computed property scenario

    If computed property builds dictionary with duplicates, last value wins.
  3. Final Answer:

    The last key-value pair overwrites previous duplicates -> Option D
  4. Quick Check:

    Duplicate keys in dictionary = last wins [OK]
Quick Trick: Duplicate dictionary keys overwrite previous entries [OK]
Common Mistakes:
MISTAKES
  • Expecting compilation error
  • Expecting runtime exception
  • Thinking duplicates store as lists

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