What is HashSet in Java? | Java HashSet (Java Tutorial)
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******************** Java HashSet Properties:
It stores the elements using hashing mechanism.
It contains unique elements only.
It uses Hash Table for storage.
It extends AbstractSet class.
It implements Set Interface.
Java HashSet constructors:
HashSet() - It is the default constructor and created an empty object.
HashSet(Collection c) - It creates an object using the elements of the collection c.
HashSet(int capacity) - It creates an object with the initial capacity.
Java HashSet Methods:
boolean add(Object targetObject) - It adds the targetObject in the set.
void clear() - It removes all the elements from the set.
Object clone() - It copies all the elements from the existing object and creates a new set object.
boolean isEmpty() - It returns if the set doesn't contain any elements.
boolean remove(Object o) - It removes the specified object from the set.
int size() - It returns the total elements count of the set.
For more details & source code check out: https://programmingline.com/2017/12/w...
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