⬅ Write a Queue from Scratch | A Helpful Line-by-Line Code Tutorial | Part 1

public class Queue {

	//initialize
	//enqueue
	//dequeue
	//empty
	//print
	//adjustQueue
	
	static final int max = 10;
	int[] queueArray = new int[max];
	int top;
	int bottom;
	int dequeued;
	
	void initialize(){
		
		top = 0;
		bottom = 0;
		
	}
	
	void enqueue(int num){
		
		if(top < max)
			queueArray[top++] = num;
		else
			System.out.println(num + " cannot be queued!");
	
	}
	
	int dequeue(){
		
		dequeued = queueArray[bottom];
		adjustQueue();
		top--;
		return dequeued;
		
	}
	
	void adjustQueue() {
		
		for(int i = 0; i < max-1 ; i++){
			
			queueArray[i] = queueArray[i+1];
			
		}
		
	}

	void isEmpty(){
		
		if(top == 0){
			
			System.out.println("The queue is empty!");
			
		}else if(top == max){
			
			System.out.println("The queue is full!");
			
		}else{
			
			System.out.println("The queue is not empty!");
			
		}
		
	}
	
	void printQueue(){
		
		if(top>0){
		
			System.out.println("The formed queue is!");
			
			for(int i = 0; i < top; i++){
					
				System.out.print(" | " + queueArray[i]);
				
			}
			
			System.out.println(" | ");
	
		}else{
			
			System.out.println("The queue is empty!");
			
		}
			
	}
	
}


public class QueueImplementation {

	public static void main(String[] args){
		
		Queue queue = new Queue();
		
		//queue.enqueue(num);
		//queue.dequeue();
		//queue.printQueue(num);
		//queue.isEmpty();
		
	}
	
}