sc-resources/数据结构(双语)/数据结构 day16【瑞客论坛 www.ruike1.com】/代码/09-集合/src/com/mj/set/Set.java

package com.mj.set;

public interface Set<E> {
	int size();
	boolean isEmpty();
	void clear();
	boolean contains(E element);
	void add(E element);
	void remove(E element);
	void traversal(Visitor<E> visitor);
	
	public static abstract class Visitor<E> {
		boolean stop;
		public abstract boolean visit(E element);
	}
}