Republished articles with source attribution. This collection is separate from Diary Coding’s original guides and does not display ads.
The Stream.generate() method in Java is used to create an infinite stream of data, typically used when the programmer needs a limitless supply of data to be processed. Here’s an example of how you might use Stream.generate(): package org.kodejava.util; import java.util.stream.Stream; public class StreamGenerate { public static void main(String[] args) { Stream<String> stringStream = Stream.generate(() […]
Pattern.splitAsStream() in Java is a method that allows us to split a string into a stream of substrings given a regex pattern. This can be useful when we’re working with large strings, and we want to process the substrings in a functional style using Java Streams. Here’s a basic example of how you can use […]
The Files.walk() method in Java is a handy method when it comes to reading directory contents. Files.walk() method returns a Stream object that you can use to process each of the elements (files or directories) in the directory structure. This method walks the file tree in a depth-first manner, starting from the given path that […]
In Java, you can use the Files.list() method to list all files in a given directory. Files.list(Path dir) is a method in the java.nio.file.Files class. This method returns a Stream that is lazily populated with Path by walking the directory tree rooted at a given starting file. The file tree is traversed depth-first, the elements […]
The BufferedReader.lines() method is a Java 8 method that returns a Stream, each element of which is a line read from the BufferedReader. This allows you to perform operations on each line with Java’s functional programming methods. Returning a Stream of strings makes the BufferedReader.lines() method very efficient in terms of memory usage when working […]
The Java Stream API is a powerful tool introduced in Java 8. It is designed to process data in a declarative way. More specifically, it makes it easy to process sequences of data elements, such as collections or arrays. Here are some key points about Java Stream API: Non-mutating: Operations on streams do not mutate […]
Stay curious. There is always something new to learn.
Writer and founder of Diary Coding — sharing notes, tutorials, and experiences about programming for anyone who wants to keep learning.