java-hashset

50+ posts

Similar Topics

DSA

21k+ articles

Java

9.8k+ articles

Arrays

6.4k+ articles

Java-Functions

4.3k+ articles

Java - util package

1.7k+ articles

Java Programs

1.7k+ articles

Hash

1.2k+ articles

Java-Collections

1.1k+ articles

java-treeset

60+ articles

Java-Set-Programs

30+ articles

Difference between HashMap and HashSet

Last Updated: 06 April 2023

HashSet is an implementation of Set Interface which does not allow duplicate value. The main thing is, objects that are stored in HashSet must override equals() for check ...read more

Last Updated: 01 March 2023

In hashing there is a hash function that maps keys to some values. But these hashing function may lead to collision that is two or more keys are mapped to same value. Chai...read more

Java-ConcurrentHashMap

java-LinkedHashSet

DSA

HashSet contains() Method in Java

Last Updated: 26 November 2018

The Java.util.HashSet.contains() method is used to check whether a specific element is present in the HashSet or not. So basically it is used to check if a Set contains an ...read more

HashSet add() Method in Java

Last Updated: 26 November 2018

The Java.util.HashSet.add() method in Java HashSet is used to add a specific element into a HashSet. This method will add the element only if the specified element is not ...read more

Count occurrences of elements of list in Java

Last Updated: 31 May 2022

Suppose we have an elements in ArrayList, we can count the occurrences of elements present in a number of ways.HashMapThis data structure uses hash function to map similar ...read more

Last Updated: 11 December 2018

Given a list (ArrayList or LinkedList), convert it into a set (HashSet or TreeSet) of strings in Java.Method 1 (Simple)We simply create an list. We traverse the given set ...read more

Last Updated: 10 June 2022

Given a set (HashSet or TreeSet) of strings in Java, convert it into a list (ArrayList or LinkedList) of strings. In java, Set interface is present in java.util package an ...read more

Last Updated: 11 December 2018

Given a set (HashSet or TreeSet) of strings in Java, convert it into an array of strings.Input : Set hash_Set = new HashSet(); hash_Set.add("Geeks"); hash_Se ...read more

Initializing HashSet in Java

Last Updated: 17 March 2022

Set in Java is an interface which extends Collection. It is an unordered collection of objects in which duplicate values cannot be stored.Basically, set is implemented by ...read more

Internal working of Set/HashSet in Java

Last Updated: 11 December 2018

As we know that a set is a well-defined collection of distinct objects. Each member of a set is called an element of the set. So in other words, we can say that a set will...read more

LinkedHashSet in Java with Examples

Last Updated: 11 September 2023

The LinkedHashSet is an ordered version of HashSet that maintains a doubly-linked List across all elements. When the iteration order is needed to be maintained this class ...read more

Last Updated: 07 May 2023

Java HashSet class implements the Set interface, backed by a hash table which is actually a HashMap instance. No guarantee is made as to the iteration order of the hash se...read more

1 2 3 4 5 >>

1 2 3 4 5 >>

1 2 3 4 >>