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From: Daniel Pitts <newsgroup.nospam@virtualinfinity.net>
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Subject: Re: Support Map<String, String> & Map<String, MyString>
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Date: Thu, 06 Oct 2011 13:23:26 -0700
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On 10/6/11 1:02 PM, Lew wrote:
> albert kao wrote:
>> The following programs work but I like to combine MyComboBox&
>> MyComboBox2 into one class so that both Map<String, String>  &
>> Map<String, MyString>  data types are supported in the single combined
>> class.
>> How to do that?
>
> Have 'MyString' implement 'CharSequence' and use a 'Map<String,CharSequence>'?
Or, if you don't really care about the value type, use Map<String, ?> as 
the parameter type.

public class MyComboBox {
    public MyComboBox(Map<String, ?> data) {...};
}

If you *do* care about the type, then make your ComboBox generic:

public class MyComboBox<V> {
    public MyComboBox(Map<String, V> data) {...};
}

>
>> public class MyComboBox extends LangComboBox implements
>> PropertyChangeListener {
>>    protected EventListenerList listenerList = new EventListenerList();
>>    private Set keySet = Collections.EMPTY_SET;
>
> DO NOT USE RAW TYPES!
Seconded.