Java-Set-Programs Archives

Difference and similarities between HashSet, LinkedHashSet and TreeSet in Java

Last Updated: 12 August 2022

In this article, we will learn, the difference between HashSet vs LinkedHashSet and TreeSet And similarities between LinkedHashSet and TreeS ...read more

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Difference between ArrayList and HashSet in Java

Last Updated: 08 May 2023

Here are couple of differences between ArrayList and HashSet.Inheritance: Implementation: Implementation : ArrayList implements List interfa...read more

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How to sort HashSet in Java

Last Updated: 11 December 2018

Given a HashSet in Java, the task is to sort this HashSet.Examples:Input: HashSet: [Geeks, For, ForGeeks, GeeksforGeeks]Output: [For, ForGee ...read more

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How to Loop Over TreeSet in Java?

Last Updated: 05 March 2024

TreeSet is one of the most important implementations of the SortedSet interface in Java that uses a Tree for storage. The ordering of the el...read more

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 mu ...read more

Program to convert Array to Set in Java

Last Updated: 19 April 2023

Array is a group of like-typed variables that are referred to by a common name. An array can contain primitives data types as well as object ...read more

Program to Convert Set of Integer to Array of Integer in Java

Last Updated: 12 September 2022

Java Set is a part of java.util package and extends java.util.Collection interface. It does not allow the use of duplicate elements and at m ...read more

Program to Convert Set to List in Java

Last Updated: 08 September 2021

Java Set is a part of java.util package and extends java.util.Collection interface. It does not allow the use of duplicate elements and at m ...read more

Merge Two Sets in Java

Last Updated: 09 December 2021

The set interface is present in java.util package and extends the Collection interface is an unordered collection of objects in which duplic ...read more

Convert Stream to Set in Java

Last Updated: 11 December 2018

Below given are some methods which can be used to convert Stream to Set in Java.Method 1 : Using CollectorsStream collect() method takes ele ...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 ...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 ...read more

Last Updated: 29 March 2024

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