Web Reference: This lesson explains how to bundle classes and interfaces into packages, how to use classes that are in packages, and how to arrange your file system so that the compiler can find your source files. In the example above, java.util is a package, while Scanner is a class of the java.util package. To use the Scanner class, create an object of the class and use any of the available methods found in the Scanner class documentation. Nov 21, 2025 · A package in Java is a mechanism to group related classes, interfaces, and sub-packages into a single unit. Packages help organize large applications, avoid naming conflicts, provide access protection, and make code modular and maintainable.
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