[Solved] Why is StringBuilder preferred over string concatenation in a loop? - Ans: Because it modifies the original string without creating new ones | C Sharp (C#)

C Sharp (C#) - Strings and StringBuilder

Why is StringBuilder preferred over string concatenation in a loop?

ABecause it modifies the original string without creating new ones

BBecause it automatically sorts strings alphabetically

CBecause it converts strings to uppercase by default

DBecause it stores strings in a database

Step-by-Step Solution

Solution:

Step 1: Understand string immutability in C#
Strings cannot be changed once created; concatenation creates new strings each time.
Step 2: How StringBuilder works
StringBuilder modifies the existing buffer without creating new string objects, improving performance in loops.
Final Answer:
Because it modifies the original string without creating new ones -> Option A
Quick Check:
String immutability = StringBuilder modifies original [OK]

Quick Trick: Use StringBuilder to avoid many new string creations [OK]

Common Mistakes:

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