Java HashSet clone() Method30 Dec 2024 | 2 min read The clone() method of Java HashSet class is used to return a shallow copy of the specified HashSet. SyntaxFollowing is the declaration of clone() method: ParameterThis method does not accept any parameter. ReturnsThe clone() method returns a shallow copy of this HashSet. ExceptionsNA Compatibility VersionJava 1.2 and above Example 1Output: HashSet elements: [Google, 101, Hindi100, JavaTpoint, Facebook] The new clone set elements: [Google, 101, JavaTpoint, Facebook, Hindi100] Example 2Output: Hash set Elements: [151, 121, 111] The new clone set elements: [121, 151, 111] Example 3Output: Elements of the hset1: DFC SSSIT JTP Elements of the hset2 after clone() operation: DFC SSSIT JTP Next TopicJava hashset iterator method |
The isEmpty() method of Java HashSet class is used to check wheather HashSet contains an element or not. It returns true if the set contains element, otherwise returns false. Syntax Following is the declaration of isEmpty() method: public boolean isEmpty() Parameter This method does not accept any parameter. Returns The isEmpty() method returns...
2 min read
The clear() method of Java HashSet class is used to removes all of the elements from this set. Syntax Following is the declaration of clear() method: public void clear() Parameter This method does not accept any parameter. Returns The clear() method does not return any value. Exceptions: NA Compatibility Version Java 1.2 and above Example 1 import java.util.*; public class...
3 min read
The size() method of Java HashSet class is used to get the number of elements in this HashSet (its cardinality). Syntax Following is the declaration of size() method: Public int size() Parameter This method does not accept any parameter. Returns The size() method returns the number of elements present in the HashSet. Exceptions NA Compatibility Version Java...
1 min read
The contains() method of Java HashSet class is used to check if this HashSet contains the specified element or not. It returns true if element is found otherwise, returns false. Syntax Following is the declaration of contains() method: public boolean contains(Object o) Parameter Parameter Description Required/Optional o It is the element whose presence in this...
2 min read
The iterator() method of Java HashSet class is used to return an iterator of the same elements as the HashSet. It return elements in random order from what present in the HashSet. Syntax Following is the declaration of iterator() method: public Iterator<E> iterator() Parameter This method does not accept any parameter. Returns The...
3 min read
The remove() is a method of Java HashSet class which removes the specified element from this set if it is present. Syntax Following is the declaration of remove() method: public boolean remove(Object o) Parameter Parameter Description Required/Optional o It is the object which will be removed to this set, if present. Required Returns The remove() method returns true...
2 min read
The add() is a method of Java HashSet class which adds the specified element to this set if this set contains no element. If it is already contain the element, the call leaves the set unchanged and returns false. Syntax Following is the declaration of add() method: public boolean...
2 min read
The spliterator() method of Java HashSet class is used to creates a late-binding and fail-fast Spliterator over the elements in this set. Syntax Following is the declaration of spliterator() method: Public Spliterator<E> spliterator() Parameter This method does not accept any parameter. Returns The spliterator() method returns a Spliterator over the elements in this...
1 min read
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