[Solved] Identify the error in this code snippet:var dict = new Dictionary<string, int>(); dict.Add("a", 1); dict.Add("a", 2); Console.WriteLine(dict["a"]); | C Sharp (C#)

C Sharp (C#) - Collections

Identify the error in this code snippet:

var dict = new Dictionary<string, int>();
dict.Add("a", 1);
dict.Add("a", 2);
Console.WriteLine(dict["a"]);

AKey "a" will be removed automatically

BCompilation error due to missing semicolon

CDuplicate key exception on second Add call

DOutput will be 2 without error

Step-by-Step Solution

Solution:

Step 1: Understand Add method behavior with duplicate keys
The Add method throws an exception if the key already exists.
Step 2: Analyze the code flow
The first Add("a", 1) works fine. The second Add("a", 2) tries to add the same key again, causing an exception.
Final Answer:
Duplicate key exception on second Add call -> Option C
Quick Check:
Adding duplicate key throws exception [OK]

Quick Trick: Add throws error if key exists; use indexer to overwrite [OK]

Common Mistakes:

MISTAKES

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