Queue.java

package com.coding.basic;

public class Queue {

	private LinkedList list = new LinkedList();

	public void enQueue(Object o) {
		list.addLast(o);
	}

	public Object deQueue() {
		return list.removeFirst();
	}

	public boolean isEmpty() {
		return list.getHead().next == null ? true : false;
	}

	public int size() {
		return list.size();
	}

	@Override
	public String toString() {
		return list + "";
	}

}