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How to convert Stream to Array using toArray method of Java 8 Stream | Streams in Java 8

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Ram N

Posts: 2693
Nickname: ramram
Registered: Jul, 2014

Ram N is Java Programmer
How to convert Stream to Array using toArray method of Java 8 Stream | Streams in Java 8 Posted: Aug 10, 2017 12:29 PM
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This post originated from an RSS feed registered with Java Buzz by Ram N.
Original Post: How to convert Stream to Array using toArray method of Java 8 Stream | Streams in Java 8
Feed Title: JAVA EE
Feed URL: http://ramj2ee.blogspot.com/feeds/posts/default?alt=rss
Feed Description: This blog has viedo tutorials and Sample codes related to below Technologies. 1.J2EE 2.Java 3.Spring 4.Hibernate 5.Database 6.Oracle 7.Mysql 8.Design Patterns
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StreamDemo.java
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Stream;

/**
*
* Convert Stream to array using stream.toArray(EntryType[]::new)
*
*/

public class StreamDemo
{
public static void main(String[] args)
{
List<Integer> list = new ArrayList<Integer>();
for (int i = 1; i < 20; i++)
{
list.add(i);
}
Stream<Integer> stream = list.stream();
Integer[] evenNumbersArr = stream.filter(i -> i % 2 == 0)
.toArray(Integer[]::new);

for (Integer evenNumber : evenNumbersArr)
{
System.out.println(evenNumber);
}
}
}
Output
2
4
6
8
10
12
14
16
18

Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/StreamDemo_StreamToArr_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/StreamDemo_StreamToArr_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/ed01c4e942c222c96b1953312e7a54d5a8556409/BasicJava/StreamDemo_StreamToArr_App/?at=master

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  • Read: How to convert Stream to Array using toArray method of Java 8 Stream | Streams in Java 8

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