[Solved] What will be the output of this C# code?var words = new[] {"apple", "banana", "apricot", "blueberry"}; var grouped = words.GroupBy(w => w[0]); foreach (var group in grouped) { Console.... | C Sharp (C#)

C Sharp (C#) - LINQ Fundamentals

What will be the output of this C# code?

var words = new[] {"apple", "banana", "apricot", "blueberry"};
var grouped = words.GroupBy(w => w[0]);
foreach (var group in grouped)
{
    Console.WriteLine($"{group.Key}: {string.Join(",", group)}");
}

Ab: banana,blueberry a: apple,apricot

Ba: apple,apricot b: banana,blueberry

Capple: apple banana: banana apricot: apricot blueberry: blueberry

Da: banana,blueberry b: apple,apricot

Step-by-Step Solution

Solution:

Step 1: Group by first character
Words are grouped by their first letter: 'a' and 'b'.
Step 2: Determine group contents and order
Group 'a' has "apple" and "apricot"; group 'b' has "banana" and "blueberry". The order is by first occurrence: 'a' then 'b'.
Final Answer:
a: apple,apricot b: banana,blueberry -> Option B
Quick Check:
GroupBy first char groups words correctly [OK]

Quick Trick: GroupBy preserves order of first key seen in source [OK]

Common Mistakes:

MISTAKES

Swapping group keys
Printing full words as keys
Mixing group contents

Master "LINQ Fundamentals" in C Sharp (C#)

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More C Sharp (C#) Quizzes

What will be the output of this C# code?

Step 1: Group by first character

Step 2: Determine group contents and order

Final Answer:

Quick Check:

Want More Practice?