java-hashset

79 posts

Last Updated: 09 January 2023

The Single Data structure cannot be able to fulfill the requirements of the programmers that's why there are a lot of inbuilt Data-Structure...read more

Java

Technical Scripter

Java-Arrays

Java Programs

java-hashset

Picked

Technical Scripter 2020

How to Convert ArrayList to HashSet in Java?

Last Updated: 19 July 2022

ArrayList: In Java, ArrayList can have duplicates as well as maintains insertion order.HashSet: HashSet is the implementation class of Set. ...read more

How to Print HashSet Elements in Java?

Last Updated: 09 January 2023

In HashSet, duplicates are not allowed. If we are trying to insert duplicates then we won't get any compile-time or runtime error and the ad ...read more

Technical Scripter 2020

Similar Topics

DSA

22.3k+ articles

Java

10.1k+ articles

Java-Functions

4.1k+ articles

Java Programs

2.1k+ articles

Misc

2.1k+ articles

Java - util package

1.5k+ articles

Java-Collections

1.1k+ articles

Java Examples

230+ articles

HashSet

66+ articles

Java-Set-Programs

23+ articles

Count of unique pairs (arr[i], arr[j]) such that i < j

Last Updated: 07 August 2022

Given an array arr[], the task is to print the count of unique pairs (arr[i], arr[j]) such that i j.Examples:Input: arr[] = {1, 2, 1, 4, 5, ...read more

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

Technical Scripter 2018

Java-Set-Programs

HashSet toString() method in Java with Example

Last Updated: 30 July 2024

The toString() method of Java HashSet is used to return a string representation of the elements of the Collection.The String representation ...read more

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

Technical Scripter 2018

Java-List-Programs

Java-Set-Programs

Count number of Distinct Substring in a String

Last Updated: 06 March 2025

Given a string, count all distinct substrings of the given string.Examples:Input : abcdOutput : abcd abc ab a bcd bc b cd c dAll Elements ar ...read more

All elements in an array are Same or not?

Last Updated: 30 August 2022

Given an array, check whether all elements in an array are the same or not.Examples:Input : "Geeks", "for", "Geeks"Output : Not all Elements ...read more

Check if all array elements are distinct

Last Updated: 29 December 2022

Given an array, check whether all elements in an array are distinct or not.Examples:Input : 1, 3, 2, 4Output : YesInput : "Geeks", "for", "G ...read more

Java HashSet iterator() Method

Last Updated: 23 January 2025

The HashSet iterator() method in Java is used to return an iterator that can be used to iterate over the elements in a HashSet. HashSet does ...read more

Java

Java-Collections

java-hashset

HashSet remove() Method in Java

Last Updated: 10 March 2025

The HashSet remove() method in Java is used to remove a specific element from the set if it is present.Note: HashSet and the remove() were i ...read more

Java

Java-Collections

java-hashset

Java HashSet size() Method

Last Updated: 23 January 2025

The HashSet size() method in Java is used to get the size of the HashSet or the number of elements present in the HashSet. Syntax of HashSet...read more

Java

Java-Collections

java-hashset

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

Convert a Set to Stream in Java

Last Updated: 11 November 2022

Set interface extends Collection interface and Collection has stream() method that returns a sequential stream of the collection. Below give ...read more

1 2 3 4 5 6 >>

1 2 3 4 5 6 >>

1 2 3 4 >>