C Sharp (C#) - Collections
What will be the output of this C# code?
var numbers = new List{1, 2, 3};
numbers.Add(4);
Console.WriteLine(numbers.Count);
What will be the output of this C# code?
medium📝 query result Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze initial list and Add method
List starts with 3 elements: 1, 2, 3. Add(4) adds one more element.Step 2: Check Count property after addition
Count now is 4 because one element was added to the original 3.Final Answer:
4 -> Option CQuick Check:
Count after Add = 4 [OK]
Quick Trick: Count updates after Add method call [OK]
Common Mistakes:
MISTAKES- Assuming Count stays 3
- Thinking Add replaces elements
- Expecting runtime error
Master "Collections" in C Sharp (C#)
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