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Java Collections


TreeSet in Java

TreeSet class implements the Set interface and stores the data in tree structure. The values are stored in sorted and ascending oreder. …


HashTable in Java

HashTable class was originally added as part of java.utill package and extended the Dictionary class. From Java 2, it is re-engineered to …


HashMap in Java

HashMap uses the hash table to implement the Map interface. Map is key-value pair where key is the reference and value is …


HashSet in Java

HastSet is one of the classes available with collections package and it extends the AbstractSet and implements the Set interface. This uses …

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