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The basic idea of the Dependency Injection is to have a separate object, an assembler, that populates a field in the lister class with an appropriate ...
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Answer: Hash tables (hash maps) - is amortized constant-time access data structures that map keys to values. Binary Trees - is a tree data structur ...
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The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and permits nulls. (HashMap allows null values as key and value ...
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Map is Interface and Hashmap is class that implements that.

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