HashSet

package com.sxt;

import java.util.HashSet;
import java.util.Iterator;

public class HashSetDemo {
public static void main(String[] args) {
HashSet set=new HashSet();
//添加元素
set.add(“欧阳狗蛋”);
set.add(“慕容翠花”);
set.add(“诸葛栓子”);
set.add(“皇甫二丫”);
//for each 遍历元素
for (String s : set) {
System.out.println(s);
}
//删除
set.remove(“诸葛栓子”);
Iterator it = set.iterator();
while (it.hasNext()) {
System.out.println(it.next());

    }}

}