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

C Sharp (C#) - Collections

Identify the issue in this C# code snippet:

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

ANo error, code runs fine

BThrows exception due to duplicate key

CCompilation error due to syntax

DThe value for "key" is overwritten silently

Step-by-Step Solution

Solution:

Step 1: Analyze dictionary operations
dict["key"] = 1; adds or updates the key "key" with value 1.
Step 2: dict.Add("key", 2);
Add throws an exception if the key already exists.
Final Answer:
Throws exception due to duplicate key -> Option B
Quick Check:
Adding duplicate key with Add causes exception. [OK]

Quick Trick: Add throws on duplicate keys, indexer overwrites [OK]

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