[Solved] Find the issue in this code:string s = null; int length = s.Length; Console.WriteLine(length); - Ans: NullReferenceException at runtime | C Sharp (C#)

C Sharp (C#) - Strings and StringBuilder

Find the issue in this code:

string s = null;
int length = s.Length;
Console.WriteLine(length);

ACode runs without error and prints 0

BSyntax error due to null string

CLength property returns 0 for null

DNullReferenceException at runtime

Step-by-Step Solution

Solution:

Step 1: Understand null string behavior
Accessing Length on a null string causes a NullReferenceException at runtime.
Step 2: Confirm no compile error
Code compiles but fails when run due to null dereference.
Final Answer:
NullReferenceException at runtime -> Option D
Quick Check:
Accessing Length on null throws exception [OK]

Quick Trick: Check for null before accessing string properties [OK]

Common Mistakes:

MISTAKES

Master "Strings and StringBuilder" in C Sharp (C#)

9 interactive learning modes - each teaches the same concept differently

More C Sharp (C#) Quizzes

Find the issue in this code: