Web Reference: 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. Learn how to use the Optional class in Java 8, a container object that may or may not contain a non-null value. See the methods, examples, and API notes for this value-based class. In Java, we use a reference type to gain access to an object, and when we don’t have a specific object to make our reference point to, then we set such references to nullto imply the absence of a value. The use of null is so common that we rarely put more thought into it. For example, field members of objects are automatically initialized to null, ...
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