Step 1: Understand what a queue is. A queue is a collection of items where you add and remove items in a specific order.
Step 2: Learn about the First In First Out (FIFO) principle. This means that the first item you add to the queue is the first one that will be taken out.
Step 3: Visualize a queue. Imagine a line of people waiting to buy tickets. The person who arrives first is the first to get their ticket and leave the line.
Step 4: Remember that in a queue, you can only add to the back and remove from the front.