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1 package jfun.yan.xml;
2
3 import java.util.ArrayList  ;
4 import java.util.HashMap ;
5
6 final class Attributes {
7 private final ArrayList names;
8 private final ArrayList vals;
9 private final HashMap pairs;
10 public Attributes(){
11 this.names = new ArrayList ();
12 this.vals = new ArrayList ();
13 this.pairs = new HashMap ();
14 }
15 public Attributes(int sz){
16 this.names = new ArrayList (sz);
17 this.vals = new ArrayList (sz);
18 this.pairs = new HashMap (sz);
19 }
20 public void add(String key, String val){
21 if(key.length()==0) return;
22 if(pairs.containsKey(key)){
23 throw new IllegalArgumentException ("duplicate key: "+key);
24 }
25 names.add(key);
26 vals.add(val);
27 pairs.put(key, val);
28 }
29 public int size(){
30 return names.size();
31 }
32 public String getKey(int i){
33 return (String )names.get(i);
34 }
35 public String getVal(int i){
36 return (String )vals.get(i);
37 }
38 public String getVal(String key){
39 return (String )pairs.get(key);
40 }
41 public String toString(){
42 return pairs.toString();
43 }
44 }
45 |
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Java API By Example, From Geeks To Geeks.