[Solved] What will be printed by the following code?object data = "world"; string text = data as string; Console.WriteLine(text != null ? text.ToUpper() : "empty"); | C Sharp (C#)

C Sharp (C#) - Polymorphism and Abstract Classes

What will be printed by the following code?

object data = "world";
string text = data as string;
Console.WriteLine(text != null ? text.ToUpper() : "empty");

Aworld

BWORLD

Cempty

Dnull

Step-by-Step Solution

Solution:

Step 1: Understand the as operator
The as operator attempts to cast data to string. Since data is a string, text will hold "world".
Step 2: Evaluate the conditional expression
The condition text != null is true, so text.ToUpper() is executed, printing "WORLD".
Final Answer:
WORLD -> Option B
Quick Check:
Successful cast with 'as' returns original string [OK]

Quick Trick: If 'as' succeeds, result is non-null [OK]

Common Mistakes:

MISTAKES

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

9 interactive learning modes - each teaches the same concept differently

More C Sharp (C#) Quizzes

What will be printed by the following code?