[Solved] Find the bug in this code:string s1 = null;string s2 = "hello";bool result = s1.Equals(s2); - Ans: NullReferenceException because s1 is null | C Sharp (C#)

C Sharp (C#) - Strings and StringBuilder

Find the bug in this code:

string s1 = null;
string s2 = "hello";
bool result = s1.Equals(s2);

AReturns false safely

BCompilation error due to null variable

CNullReferenceException because s1 is null

DReturns true incorrectly

Step-by-Step Solution

Solution:

Step 1: Check method call on null object
Calling s1.Equals when s1 is null causes NullReferenceException.
Step 2: Understand safe comparison alternatives
Use string.Equals(s1, s2) static method to avoid exception.
Final Answer:
NullReferenceException because s1 is null -> Option C
Quick Check:
Calling instance method on null causes exception [OK]

Quick Trick: Avoid calling instance methods on null strings [OK]

Common Mistakes:

MISTAKES

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Find the bug in this code: