[Solved] What will be the output of this code?var sb = new System.Text.StringBuilder(); sb.Append("123"); sb.Insert(1, "abc"); Console.WriteLine(sb.ToString()); | C Sharp (C#)

C Sharp (C#) - Strings and StringBuilder

What will be the output of this code?

var sb = new System.Text.StringBuilder();
sb.Append("123");
sb.Insert(1, "abc");
Console.WriteLine(sb.ToString());

A123abc

Babc123

C1abc23

D12abc3

Step-by-Step Solution

Solution:

Step 1: Understand Append and Insert effects
Append("123") creates "123". Insert(1, "abc") inserts "abc" at index 1, between '1' and '2'.
Step 2: Construct final string
Result is "1" + "abc" + "23" = "1abc23".
Final Answer:
1abc23 -> Option C
Quick Check:
Insert adds text at index correctly = 1abc23 [OK]

Quick Trick: Insert shifts existing chars right from index [OK]

Common Mistakes:

MISTAKES

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What will be the output of this code?