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Difference Between hashmap and Property class

Sowm Herur
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Joined: Jul 07, 2008
Posts: 32
What is the difference between Hash map and Property class?
i am aware Property class is used to read from a property file..But whey do we require a hash map?
In which scenario will we use Hash map? Please tell with an Example..of using both Property and hash map class?
Vivek Singh
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Joined: Oct 27, 2009
Posts: 92
Hash Map is a Map. That contains key Value Pairs.

I am not sure about which property class you are referring to as we have java.util.Properties class?
Sowm Herur
Ranch Hand

Joined: Jul 07, 2008
Posts: 32
Yes i am referring to java.util.Property class?

In what scenarios will use Hashmap and property class?
Can you give examples and explain please?
Vijitha Kumara

Joined: Mar 24, 2008
Posts: 3817

Properties class allows String key/value pairs to read from or write to a stream. You may have have several application specific parameters to be read at the application startup you can utilize Properties class. HashMap is a collection class which allows to use key/value pairs of objects. But HashMap is identical to Hashtable (which the Properties class itself extends from) apart from few differences. Check the API documentation of those.

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Rob Spoor

Joined: Oct 27, 2005
Posts: 19656

As Vijitha said, Properties extends Hashtable. As such, the differences are only those between HashMap and Hashtable, and the extra methods added by Properties.

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