hashset2.java

该原代码为＜Java编程基础、应用与实例＞的附盘代码

import java.util.*;
public class HashSet2{
  public static void main(String[] args){
    HashSet hset=new HashSet();
    System.out.println("技 俺狼 夸家甫 眠啊钦聪促.");
    hset.add("救崇");
    hset.add("Hello");
    hset.add("救崇");
    System.out.println("夸家狼 俺荐: "+hset.size());
  }
}