Queue.java

package datastructs;import java.util.ArrayList;public class Queue<T> {    ArrayList<T> container = new ArrayList<T>();    public void enqueue(T value){        container.add(value);    }    public T dequeue(){        if(!container.isEmpty()){            T temp = container.get(0);            container.remove(0);            return temp;        }else{            return null;        }    }}