[Solved] Identify the error in this C# code snippet using List<string>:List colors = new List(); colors.Add("red"); colors[1] = "blue"; Console.WriteLine(colors[1]); | C Sharp (C#)

C Sharp (C#) - Collections

Identify the error in this C# code snippet using List<string>:

List colors = new List();
colors.Add("red");
colors[1] = "blue";
Console.WriteLine(colors[1]);

AIndexOutOfRangeException because index 1 does not exist yet.

BSyntax error in Add method usage.

CCannot assign string to List<string> element.

DNo error; code runs and prints 'blue'.

Step-by-Step Solution

Solution:

Step 1: Analyze list content after Add
After colors.Add("red"), list has one element at index 0 only.
Step 2: Check assignment to colors[1]
colors[1] does not exist yet, so assigning to it causes IndexOutOfRangeException.
Final Answer:
IndexOutOfRangeException because index 1 does not exist yet. -> Option A
Quick Check:
Assigning to non-existing index throws exception [OK]

Quick Trick: List index must exist before assignment; use Add to add items [OK]

Common Mistakes:

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Identify the error in this C# code snippet using List<string>: