C Sharp (C#) - Collections
Which method is used to check if a key exists in a C# Dictionary?
Which method is used to check if a key exists in a C# Dictionary?
easy🧠 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall Dictionary methods
The Dictionary class provides a method named ContainsKey to check for key existence.Step 2: Verify method name correctness
Other options like HasKey, ExistsKey, and FindKey are not valid Dictionary methods.Final Answer:
ContainsKey() -> Option DQuick Check:
Check key existence method = ContainsKey() [OK]
Quick Trick: Use ContainsKey() to check keys [OK]
Common Mistakes:
MISTAKES- Using incorrect method names
- Confusing with methods from other collections
- Trying to access keys directly without checking
Master "Collections" in C Sharp (C#)
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