14. Packages
Packages in Java serve as namespaces that organize related classes and interfaces, enhancing code maintainability while preventing naming conflicts. The chapter discusses built-in and user-defined packages, syntactical rules for creating and using packages, access control mechanisms, and recommended naming conventions. Understanding how to leverage packages is essential for effective code management in large projects.
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Sections
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14.6.2Private
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14.6.3Protected
What we have learnt
- A package organizes Java classes into namespaces.
- Built-in packages provide pre-defined functionality, while user-defined packages help organize custom classes.
- Access control in Java includes public, private, protected, and default levels, allowing precise visibility management for classes and members.
- Sub-packages allow further classification within package hierarchies.
Key Concepts
- -- Package
- A namespace that organizes related classes and interfaces in Java.
- -- Builtin Packages
- Pre-defined packages provided by Java, such as java.util, java.io, and java.math.
- -- Userdefined Packages
- Packages created by programmers to organize their own classes and enhance code structure.
- -- Access Control
- Mechanisms in Java that manage the visibility and accessibility of classes and members through access modifiers.
- -- Subpackages
- Packages nested within other packages to further organize classes hierarchically.
Additional Learning Materials
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