Which of the following is the correct syntax to check if obj is an int and assign it to number?

easy📝 Syntax Q12 of 15

C Sharp (C#) - Polymorphism and Abstract Classes

Which of the following is the correct syntax to check if obj is an int and assign it to number?

Aif (obj is int number) { }

Bif (obj as int number) { }

Cif (obj == int number) { }

Dif (obj instanceof int number) { }

Step-by-Step Solution

Solution:

Step 1: Identify correct C# type pattern syntax
The correct syntax uses is Type variable to check and assign.
Step 2: Compare options
if (obj is int number) { } uses is int number, which is valid. Others use invalid keywords or syntax.
Final Answer:
if (obj is int number) { } -> Option A
Quick Check:
is Type var syntax is correct [OK]

Quick Trick: Use is Type var for type check and assignment [OK]

Common Mistakes:

MISTAKES

Master "Polymorphism and Abstract Classes" in C Sharp (C#)

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More C Sharp (C#) Quizzes