Web Reference: Aug 6, 2025 · User-defined packages are those packages that are designed or created by the developer to categorize classes and packages. It can be imported into other classes and used in the same way as we use built-in packages. Learn how to use packages in Java to group related classes, avoid name conflicts, and write better maintainable code. Find out how to import built-in packages from the Java API and create your own user-defined packages. May 30, 2024 · We have two types of packages in Java: built-in packages and the packages we can create (also known as user defined package). In this guide we will learn what are packages, what are user-defined packages in java and how to use them.
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