Question

JAVA里面的dictionary<t,t>怎么用； 举个简单的例子最好，

Answer 1

我是用C#语言的，字典的基本思路就是，键值对！每个键值对应一个值。
这一段C#代码你可以参考一下：我想对你有帮助

public class OthelloCast : List<string>
{
// Use a dictionary to contain
// cast names (key) and actor names (value).
public Dictionary<string, string> OthelloDict =
new Dictionary<string, string>();

public OthelloCast()
{
// Add data to the dictionary.
OthelloDict.Add("Bianca", "Gretchen Rivas");
OthelloDict.Add("Brabantio", "Carlos Lacerda");
OthelloDict.Add("Cassio", "Steve Masters");
OthelloDict.Add("Clown", "Michael Ludwig");
OthelloDict.Add("Desdemona", "Catherine Autier Miconi");
OthelloDict.Add("Duke of Venice", "Ken Circeo");
OthelloDict.Add("Emilia", "Eva Valverde");
OthelloDict.Add("Gratiano", "Akos Kozari");
OthelloDict.Add("Iago", "Darius Stasevicius");
OthelloDict.Add("Lodovico", "Fernando Souza");
OthelloDict.Add("Montano", "Jeff Hay");
OthelloDict.Add("Othello", "Marco Tanara");
OthelloDict.Add("Roderigo", "Pedro Ruivo");

// Populate the list with character names.
foreach (KeyValuePair<string, string> kvp in OthelloDict)
{
this.Add(kvp.Key);
}
}

Answer 2

dictionary<t,t> 是个抽象类，具体实现要由它的子类实现，比如Hashtable，实现键值对功能。
下面这个小例子，实现存和读取功能
Dictionary<String,String> hashTable=new Hashtable<String,String>();
hashTable.put("s1", "baidu");
hashTable.put("s2", "google");

String str=hashTable.get("s1");
System.out.println(str);