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Difference between HashMap and Hash table
HashMap:
It allow us to have null values and also one null key
It is Unsynchronized.
Iterator in HashMap is Fail-Safe.
Hash Table:
It doesn't allow null value as key and value.
It isn't synchronized.
What is the difference between instance and object of a class? Few says both are same, then why java kept both the words for same thing?
Why there is a need to use primary key in database ? Primary key is a constraint basically used in datdabase to uniquely identify the records in the database.
Need Minecraft Bukkit Plugin Programmer I want to make my own server for Minecraft. I am in need of a experts to make custom bukkit plugins for my server. But basically I will w
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Object diagrams define instances instead of classes. They are useful for illustrating some complicated objects in detail about their recursive relationships. When
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