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Programming Discrete Math Concepts for Beginners

Queue in Java

Explore how to implement the Queue interface in Java, including using key methods like add, remove, offer, and poll. Understand queue operations, setting size limits, and handling exceptions to confidently work with linear data structures.

We'll cover the following...

Using the add() method

The Queue interface and its implementations are different, although our algorithm has similarities with the Stack interface. Let’s see a straightforward queue implementation where we’ve added a few elements. We’ve kept the code and the output in the same place.

The number of methods might seem daunting at first, but don’t worry. They become easier over time.

Java
import java.util.LinkedList;
import java.util.Queue;
//Queue Example One
class Main{
    public static void main(String[] args) {
        Queue<String> letters = new LinkedList<String>();
        letters.add("A");
        letters.add("B");
        letters.add("C");
        letters.add("D");
        letters.add("E");
        letters.add("F");
        System.out.println(letters);
    }
}

We get the following output when we run the code above:

[A, B, C, D, E, F]

Using the remove() method

We can check whether a ...