<![CDATA[public class Queue {
private java.util.LinkedList list = new java.util.LinkedList();
public Queue() {
}
public void clear() {
list.clear();
}
public boolean isEmpty() {
return list.isEmpty();
}
public Object firstEl() {
return list.getFirst();
}
public Object dequeue() {
return list.removeFirst();
}
public void enqueue(Object el) {
list.add(el);
}
public String toString() {
return list.toString();
}
}
]]>