retrieve data from database using Hashmap (multiple values in one key)

hi i want to retrieve all data from the specific field in database using hashmap.. unfortunately, only the last value was retrieve.. what will i do?

Quote:

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what will i do?

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Fix the logic in your code.

You want to retrieve all data from a table in database, isn't it?
For example:

You have a table in database:
table: Names
id name
--------------------------
1 Adam
2 Brian
3 John
4 Michael

this code can retrieve all data from this table:

Code Java:

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...
Map<Integer, String> names = new HashMap<Integer, String>();
 
...
Statement s = connection.createStatement();
ResultSet r = s.executeQuery("SELECT * FROM Names");
 
while(r.next()){
    Integer id = new Integer(r.getInt("id"));
    String name = new String(r.getString("name"));
 
    names.put(id, name);
}
...

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names collection will contain all ids and names from Names table.