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HashMap in Java


Tutorial Details:
HashMap class is used to implement Map interface. The value of HashMap is stored using get() and put(). HashMap provides key-value access to data. HashMap is almost equal to HashTable, the only difference is that HashMap allows null value and is unsynchronized. HashMap does not guarantee the order of the map. This means that it is not necessary that the order in which the elements are read by Iterator is same to the order in which they were added.

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HashMap in Java

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HashMap in Java

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