[Solved] What does the ContainsKey method do in a C# Dictionary? - Ans: Checks if a specific key exists in the dictionary | C Sharp (C#)

C Sharp (C#) - Collections

What does the ContainsKey method do in a C# Dictionary?

AChecks if a specific key exists in the dictionary

BAdds a new key-value pair to the dictionary

CRemoves a key and its value from the dictionary

DReturns the number of items in the dictionary

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of ContainsKey
The ContainsKey method checks if a given key is present in the dictionary.
Step 2: Compare with other dictionary methods
Add adds items, Remove deletes items, and Count returns the number of items, so these are different from ContainsKey.
Final Answer:
Checks if a specific key exists in the dictionary -> Option A
Quick Check:
ContainsKey checks key presence [OK]

Quick Trick: ContainsKey checks if key exists before access [OK]

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What does the ContainsKey method do in a C# Dictionary?