Contents
Which packages are Java API packages?
Packages
- java.applet.
- java.awt.
- java.awt.color.
- java.awt.datatransfer.
- java.awt.dnd.
- java.awt.event.
- java.awt.font.
- java.awt.geom.
What are API packages in Java?
An application programming interface (API), in the context of Java, is a collection of prewritten packages, classes, and interfaces with their respective methods, fields and constructors.
How big is the Java API?
The Java Standard API is now very large since Java’s beginnings, and contains over 200 packages, nearly 5800 classes, and nearly 50,000 methods.
Which is not J2EE API?
The following APIs are not available for J2EE client applications, but are available for J2EE web servers and EJB servers: JTA: The Java Transactions API is the API for managing and coordinating transactions across heterogeneous systems. JavaMail: This is the API for sending and receiving email.
What is Java API example?
1. Java API. An API stands for Application Programming Interface, and it is an interface that allows communication between different applications using the packages it comprises. For example, we use JDBC API in java to connect to any database server to perform several transactions using java.
Which is largest package in Java?
PortableInterceptor package contains the largest number of interfaces (39 in all) in JDK 6.
Which API is used in Java?
The Most Commonly Used Java APIs
| API | Acronym |
|---|---|
| Java Advanced Imaging | JAI |
| Java Data Objects | JDO |
| Java Media Frameworks | JMF |
| Java Persistence API | JPA |
What is J2EE API?
The Java Message Service (JMS) API is a messaging standard that allows J2EE application components to create, send, receive, and read messages. It enables distributed communication that is loosely coupled, reliable, and asynchronous.
Who invented Java?
James Gosling
Java/Designed by
BOSTON (Reuters) – James Gosling, creator of the Java computer language and one of the most prominent employees in Oracle Corp’s newly acquired Sun Microsystems, has resigned from Oracle.
Which is the official API for the Java language?
The official core Java API, contained in the Android (Google), SE (OpenJDK and Oracle), MicroEJ (IS2T). These packages (java.* packages) are the core Java language packages, meaning that programmers using the Java language had to use them in order to make any worthwhile use of the Java language.
Which is the main package of Java image I / O API?
The main package of the Java Image I/O API. A package of the Java Image I/O API dealing with synchronous notification of events during the reading and writing of images. A package of the Java Image I/O API dealing with reading and writing metadata. Package containing the public classes used by the built-in BMP plug-in.
What do you need to know about Java packages?
1 Java Packages & API. A package in Java is used to group related classes. 2 Built-in Packages. The Java API is a library of prewritten classes, that are free to use, included in the Java Development Environment. 3 Import a Class. 4 Import a Package. 5 User-defined Packages.
What are the classes in java.net package?
The java.net package can be roughly divided into two sections: a low-level API and a high-level API. Low-level API has classes like InetAddress whereas high-level API has classes like URL, URI, URLConnection, and HttpURLConnection.