Generate method of Java 8 Stream | Java 8 streams tutorial | Java 8 streams | Streams in Java 8

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StreamGenerateDemo1.java

import java.util.stream.Stream;

public class StreamGenerateDemo1
{
    public static void main(String[] args)
    {
        String str = "Hello World!";

        /*
         * generate(): We need to pass Supplier to this method and it
         * will return an infinite sequential unordered stream. This
         * is suitable for generating constant streams, streams of
         * random elements, etc.
         */

        Stream<String> stream = Stream.generate(str::toString);                                  
        stream.forEach(s -> System.out.println(s));
    }
}

Output

Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
Hello World!
...
...
...
..

StreamGenerateDemo2.java

import java.util.stream.Stream;

public class StreamGenerateDemo2
{
    public static void main(String[] args)
    {
        String str = "Hello World!";

        /*
         * generate(): We need to pass Supplier to this method and it
         * will return an infinite sequential unordered stream. This
         * is suitable for generating constant streams, streams of
         * random elements, etc.
         * 
         * limit(): We need to pass a max value and it returns the
         * stream up to the max number of elements.
         */

        Stream<String> stream = Stream.generate(str::toString)
                                      .limit(4);
        stream.forEach(s -> System.out.println(s));
    }
}

Output

Hello World!
Hello World!
Hello World!
Hello World!

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

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

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/07d37f967453de17efa70af5825dc03ae2d5a7c0/BasicJava/StreamDemo_generate_hw_App/?at=master

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