Which of the following is the correct syntax to create a new StringBuilder instance?

easy📝 Syntax Q3 of Q15

C Sharp (C#) - Strings and StringBuilder

Which of the following is the correct syntax to create a new StringBuilder instance?

Avar sb = new stringBuilder();

Bvar sb = StringBuilder();

CStringBuilder sb = new String();

Dvar sb = new StringBuilder();

Step-by-Step Solution

Solution:

Step 1: Recall correct class instantiation syntax in C#
Use 'new' keyword with exact class name and parentheses.
Step 2: Check each option
var sb = new StringBuilder(); uses correct casing and syntax; others have errors like missing 'new', wrong class name, or wrong casing.
Final Answer:
var sb = new StringBuilder(); -> Option D
Quick Check:
Correct instantiation = var sb = new StringBuilder(); [OK]

Quick Trick: Use 'new StringBuilder()' with exact casing [OK]

Common Mistakes:

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