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asked 3 years ago
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Hi,
HashMap has a key and a set of values. Using general life example - you have a
phonebook in which you have a name (key) and contact details for that name (Values). HashMap or Hashtable is used in similar examples when a key has associated to it many values and that the values are searched using thier key.
Both HashMap and Hash table provide key-value access to data. Basically both provide similar functionality. There is no major difference between them.
One of the minor differences between them are:
1- HashMap is fail-safe , Hash table is not.
2- HashMap allows null values in it while Hash table doesn't
Click here to find out more on what you can do with HashMap.
http://mindprod.com/jgloss/hashmap.html#SAMPLEUSE
http://www.jguru.com/faq/view.jsp?EID=430247
HashMap has a key and a set of values. Using general life example - you have a
phonebook in which you have a name (key) and contact details for that name (Values). HashMap or Hashtable is used in similar examples when a key has associated to it many values and that the values are searched using thier key.
Both HashMap and Hash table provide key-value access to data. Basically both provide similar functionality. There is no major difference between them.
One of the minor differences between them are:
1- HashMap is fail-safe , Hash table is not.
2- HashMap allows null values in it while Hash table doesn't
Click here to find out more on what you can do with HashMap.
http://mindprod.com/jgloss/hashmap.html#SAMPLEUSE
http://www.jguru.com/faq/view.jsp?EID=430247
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