--- title: "Packages in OOPS" description: "A package is a namespace that organizes a set of related classes and interfaces. Conceptually you can think of packages as being similar to different" author: "ANkita gupta" published: 2015-05-02 updated: 2018-02-23 canonical: https://www.mindstick.com/blog/10878/packages-in-oops category: "java" tags: ["oops"] reading_time: 2 minutes --- # Packages in OOPS A package is a namespace that organizes a set of related classes and interfaces. Conceptually you can think of packages as being similar to different folders on [your computer](https://www.mindstick.com/articles/13023/choosing-the-best-power-cord-for-your-computer-a-layman-s-guide). You might keep HTML pages in [one folder](https://www.mindstick.com/forum/159900/how-can-i-copy-one-file-from-one-folder-to-another-within-an-azure-fileshare-using-c-sharp), images in another, and scripts or applications in yet another. Because [software written](https://answers.mindstick.com/qa/49864/is-it-possible-to-run-software-written-for-mac-os-x-on-windows) in the Java [programming language](https://www.mindstick.com/articles/329035/5-most-in-demand-programming-languages-to-consider-for-your-app-development-in-2022) can be composed of hundreds or thousands of individual classes, it makes sense to keep things organized by placing related classes and interfaces into packages. The [Java platform](https://www.mindstick.com/interview/22895/what-is-the-main-difference-between-java-platform-and-other-platforms) provides an enormous [class library](https://www.mindstick.com/forum/158577/what-is-the-significance-of-the-base-class-library-bcl-in-the-dot-net-framework) (a set of packages) suitable for use in your own applications. This library is [known as](https://answers.mindstick.com/qa/35703/ricky-ponting-is-also-known-as-what) the "Application Programming Interface", or "API" for short. Its packages represent the tasks most commonly associated with general-purpose programming. For example, a **String** object contains state and behavior for character strings; a File object allows a programmer to easily create, delete, inspect, compare, or modify a file on the **file** system; a Socket object allows for the creation and use of network **sockets**; various GUI objects control buttons and checkboxes and anything else related to graphical [user interfaces](https://answers.mindstick.com/qa/102632/what-is-the-significance-of-google-s-material-design-for-user-interfaces). There are literally thousands of classes to choose from. This allows you, the programmer, to focus on the design of your particular application, rather than the [infrastructure](https://www.mindstick.com/news/2313/a-cybersecurity-and-infrastructure-security-agency-will-monitor-the-us-midterm-elections) required to make it work. The **JAVA PLATFORM API SPECIFICATION** contains the complete listing for all packages, interfaces, classes, fields, and methods supplied by the Java SE platform. Load the page in your browser and bookmark it. As a programmer, it will become your single most important piece of reference documentation. --- Original Source: https://www.mindstick.com/blog/10878/packages-in-oops Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.