How many packages does Java have?

How many packages does Java have?

A package as the name suggests is a pack(group) of classes, interfaces and other packages. In java we use packages to organize our classes and interfaces. We have two types of packages in Java: built-in packages and the packages we can create (also known as user defined package).

What are the packages available in Java?

There are many built-in packages such as java, lang, awt, javax, swing, net, io, util, sql etc….Advantage of Java Package

  • Java package is used to categorize the classes and interfaces so that they can be easily maintained.
  • Java package provides access protection.
  • Java package removes naming collision.

    How many types of package are there?

    There are three major types of paper packaging: corrugated boxes, boxboard or paperboard cartons, and paper bags and sacks. Corrugated Boxes: Corrugated boxes are commonly used to carry heavier products such as appliances, electronic goods, wine, fruit and vegetables.

    Which is the largest package in Java?

    PortableInterceptor package contains the largest number of interfaces (39 in all) in JDK 6.

    How many classes do Java have?

    There are 5,000 or so classes built-in to Java, and programmers have written hundreds of thousands if not millions of their own.

    What is AWT package in Java?

    Java AWT (Abstract Window Toolkit) is an API to develop GUI or window-based applications in java. AWT is heavyweight i.e. its components are using the resources of OS. The java. awt package provides classes for AWT api such as TextField, Label, TextArea, RadioButton, CheckBox, Choice, List etc.

    What are the 2 types of packages?

    Let’s take a look at some of the different types of packaging options you can use to enhance your product & customer experience!

    • Paperboard boxes. Paperboard is a paper-based material that is lightweight, yet strong.
    • Corrugated boxes.
    • Plastic boxes.
    • Rigid boxes.
    • Chipboard packaging.
    • Poly bags.
    • Foil sealed bags.

    How many packages and classes are in Java?

    The following are the count for number of packages and classes in java 6 / 7 / 8/ 9/ 10/ 11/ 12/ 13/ 14 . Hope this helps!!!. If you have some questions / doubts please comment. Follow me at Quora User to learn more on Raspberry Pi, Hadoop, Android, Java, Windows, linux topics. There are many packages including the sub packages.

    Where can I find the list of Java packages?

    The complete list can be found at Oracles website: The library is divided into packages and classes. Meaning you can either import a single class (along with its methods and attributes), or a whole package that contain all the classes that belong to the specified package.

    Is it good practice to define your own Java packages?

    Programmers can define their own packages to bundle group of classes/interfaces, etc. It is a good practice to group related classes implemented by you so that a programmer can easily determine that the classes, interfaces, enumerations, and annotations are related.

    What is the name of The subpackage in Java?

    Subpackage in java. Package inside the package is called the subpackage. It should be created to categorize the package further. Let’s take an example, Sun Microsystem has definded a package named java that contains many classes like System, String, Reader, Writer, Socket etc.