class Link extends Object {
	Object key;
	Object value;
	Link next;
	public Link(Object key, Object value, Link next) {
		this.key = key;
		this.value = value;
		this.next = next;
	}

	public Object getKey() {
		return key;
	}
	public Object getValue() {
		return value;
	}
	public void setKey(Object key) {
		this.key = key;
	}
	public void setValue(Object value) {
		this.value = value;
	}

	public Link getNext() {
		return next;
	}
}