java-set

34 posts

Last Updated: 29 April 2022

The List interface allows storing the ordered collection. It is a child interface of Collection. It is an ordered collection of objects in w ...read more

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Difference between List, Set and Map in Java

Last Updated: 27 September 2021

List interface in Java is a sub-interface of the Java collections interface. It contains the index-based methods to insert, update, delete, ...read more

Set contains() method in Java with Examples

Last Updated: 31 December 2018

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

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Set addAll() Method in Java

Last Updated: 04 February 2025

In Java, the addAll() method of the Set class is used to add all the elements of a specified collection to the current collection. The eleme ...read more

Set add() method in Java with Examples

Last Updated: 24 May 2023

The add() method of Set in Java is used to add a specific element into a Set collection. The set add() function adds the element only if the ...read more

Set remove() method in Java with Examples

Last Updated: 31 December 2018

The java.util.Set.remove(Object O) method is used to remove a particular element from a Set.Syntax:boolean remove(Object O)Parameters: The p ...read more

Set iterator() method in Java with Examples

Last Updated: 31 December 2018

The java.util.Set.iterator() method is used to return an iterator of the same elements as the set. The elements are returned in random order ...read more

Set size() method in Java with Example

Last Updated: 26 July 2024

The java.util.Set.size() method is used to get the size of the Set or the number of elements present in the Set. Syntax:int size()Parameters ...read more

Set equals() Method in Java

Last Updated: 04 February 2025

In Java, the equals() method of the Set class is used to compare two sets for equality. It checks if two sets contain the same elements rega ...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

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: 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

Last Updated: 08 April 2025

The Set Interface is present in java.util package and extends the Collection interface. It is an unordered collection of objects in which du...read more

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