[Solved] What will be the output of this C# code? int[] numbers = new int[] {1, 2, 3}; Array.Resize(ref numbers, 5); numbers[3] = 4; Console.WriteLine(numbers.Length); | C Sharp (C#)

C Sharp (C#) - Collections

What will be the output of this C# code?

int[] numbers = new int[] {1, 2, 3};
Array.Resize(ref numbers, 5);
numbers[3] = 4;
Console.WriteLine(numbers.Length);

A4

B5

C3

DError

Step-by-Step Solution

Solution:

Step 1: Understand Array.Resize effect
Array.Resize changes the array size to 5, extending it from 3.
Step 2: Check Length property
After resizing, Length reflects new size, which is 5.
Final Answer:
5 -> Option B
Quick Check:
Array length after Resize = 5 [OK]

Quick Trick: Array.Resize changes size; Length updates accordingly [OK]

Common Mistakes:

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