[Solved] Identify the issue in this C# code snippet:HashSet<int> values = new HashSet<int>(); values.Add(10); values.Add(20); Console.WriteLine(values[0]); | C Sharp (C#)

C Sharp (C#) - Collections

Identify the issue in this C# code snippet:

HashSet<int> values = new HashSet<int>();
values.Add(10);
values.Add(20);
Console.WriteLine(values[0]);

ACannot add integers to HashSet

BHashSet does not support indexing with []

CHashSet requires initialization with values

DConsole.WriteLine cannot print HashSet elements

Step-by-Step Solution

Solution:

Step 1: Understand HashSet structure
HashSet<T> is an unordered collection and does not support indexing.
Step 2: Analyze the code
Attempting to access values[0] causes a compile-time error because HashSet does not have an indexer.
Final Answer:
HashSet does not support indexing with [] -> Option B
Quick Check:
Use methods like Contains or iterate instead. [OK]

Quick Trick: HashSet has no indexer, use iteration or Contains [OK]

Common Mistakes:

MISTAKES

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