Web Reference: If a value is present, apply the provided mapping function to it, and if the result is non-null, return an Optional describing the result. Otherwise return an empty Optional. Sep 6, 2025 · Java 8 introduced the Optional class in the java.util package to handle the problem of null values more gracefully. Instead of risking NullPointerException (NPE), Optional provides a container object that may or may not hold a non-null value. In this tutorial, we’re going to show the Optionalclass that was introduced in Java 8. The purpose of the class is to provide a type-level solution for representing optional values instead of nullreferences. To get a deeper understanding of why we should care about the Optional class, take a look at the official Oracle article.
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