Convert List to Array Using Stream without Param

Java 8 has added the Stream API that helps to easily perform bulk operations on Collections. A new method called stream() has been added to all the collection interfaces that returns a Stream corresponding to the underlying collection.

There is a toArray method available on the Stream interface that can be used to convert the Stream to an array. So this method can be used to convert a List to an array. There are two overloaded versions of this method as explained below.

This Stream.toArray method does not accept any input parameter and it returns an object array. The following code demonstrates this approach:

Here, firstly the stream() method is invoked on the input List. This returns a Stream corresponding to the List. Then the toArray method is invoked on the Stream. This returns an object array.

Hence this code prints the following output:

2 4 6 8 10
Tushar Sharma
Tushar Sharmahttps://www.automationdojos.com
Hi! This is Tushar, the author of 'Automation Dojos'. A passionate IT professional with a big appetite for learning, I enjoy technical content creation and curation. Hope you are having a good time! Don't forget to subscribe and stay in touch. Wishing you happy learning!

LEAVE A REPLY

Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Recent Posts

RELATED POSTS

Setting Max/Min Digits For Decimal Numbers With Java DecimalFormat

The DecimalFormat class offers the following four such methods which can be used to easily set the maximum and/or minimum digits for decimal numbers....

How To Convert List To Array in Java

A common scenario faced by programmers is to convert a Java List to an Array. A 'List' is part of the Collection Framework and...

Getting Started With Hibernate

Introduction Hibernate is a framework which allows you to access database tables from Java code. Before Hibernate came into existence, JDBC was widely used. JDBC...

Â

MORE IN THIS CATEGORY

Concatenate Strings Using String.concat()

The String class has a method called concat. It accepts as parameter a String value and concatenates it with the current String. The following...

Setting Max/Min Digits For Decimal Numbers With Java DecimalFormat

The DecimalFormat class offers the following four such methods which can be used to easily set the maximum and/or minimum digits for decimal numbers....

Remove Duplicates from List Using LinkedHashSet

Another implementation of the Set interface is LinkedHashSet. LinkedHashSet maintains the order of elements and helps to overcome the HashSet limitation. The following code...

RECENT 'HOW-TO'

How To Install Oh-My-Posh On Windows PowerShell

Oh-My-Posh is a powerful custom prompt engine for any shell that has the ability to adjust the prompt string with a function or variable. It does not...

SIMILAR ON CODEX

- Advertisement -spot_img