What is a Queue in C#?

Q: What is a Queue in C#?

Short answer: A Queue is a generic collection in C# that stores elements in a First-In, First-Out (FIFO) order. The first item added is the first to be removed. It is part of the System.Collections.Generic namespace. Use case: Modeling real-world queues — e.g., print jobs, task scheduling, or customer service systems. Example code Queue orders = new Queue (); orders.Enqueue("Order1"); orders.Enqueue("Order2"); Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Junior From PDF Collections C# Collections

What is a Queue<T> in C#?

Short answer: A Queue<T> is a generic collection in C# that stores elements in a First-In, First-Out (FIFO) order. The first item added is the first to be removed. It is part of the System.Collections.Generic namespace. Use case: Modeling real-world queues — e.g., print jobs, task scheduling, or customer service systems.

Example code

Queue<string> orders = new Queue<string>(); orders.Enqueue("Order1"); orders.Enqueue("Order2");

Say this in the interview

Define — one clear sentence (the short answer above).
Example — relate it to a project like ShopNest or your real work.
Trade-off — when you would not use it.

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