hashtableの使い方
2225 ワード
1 import java.util.Hashtable;
2 public class HashTable {
3 public static void main (String[] args)
4 {
5 Hashtable<String,Object> ht=new Hashtable<String,Object>();
6 ht.put("xiao wang", 30);
7 ht.put("zhang san", "aaa");
8 ht.put("he hai", true);
9
10 System.out.println(ht.size());
11 ht.remove("zhang san");
12 System.out.println(ht.size());
13
14
15 System.out.println(ht.get("he hai"));
16 ht.put("he hai", "hello");
17 System.out.println(ht.get("he hai"));
18 }
19 }