Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories.

Use the parse method of another wrapper class. Use the deprecated constructor of the Long class and autobox into a primitive long. Use the parse method of a different wrapper class, such as Integer.

A string class is a user-defined template for creating and manipulating string objects, which are sequences of characters. Methods of class string enable the following capabilities: examining ...

Method and variable handles vs. Java reflection To truly understand MethodHandles and VarHandles —what they do and why they are useful—it’s helpful to know a few things about reflection in Java.

The example code below shows how to use Java’s DirectoryStream in a method to list the files of a directory: public Set<String> listFilesUsingDirectoryStream(String dir) throws IOException { ...