Queue Operations in Java: Explanation & Practice

Use Queue for FIFO operations

Problem summary

Create a Queue, add elements, and demonstrate FIFO behavior.

Starter code

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Queue<String> queue = new LinkedList<>();
        // Add: First, Second, Third
        // Remove and print two elements
    }
}

Expected output and test cases

  • FIFO order
    Removed: First
    Removed: Second

Hints

  1. offer() or add() to enqueue
  2. poll() or remove() to dequeue
  3. peek() to see front without removing

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