The connections and differences between Java SE, Java EE, and Java Me

There are three versions of the Java platform, which enables software developers, service providers, and device manufacturers to develop for specific markets:
   * Java SE (Java platform,standard Edition). Java SE was formerly known as J2SE.
It allows you to develop and deploy Java applications that are used in desktops, servers, embedded environments, and live environments.
Java SE contains classes that support Java WEB Service development and provides the foundation for Java platform,enterprise Edition (Java EE).
   * Java EE (Java platform,enterprise Edition). This version was formerly known as the Java EE.
The Enterprise Edition helps develop and deploy portable, robust, scalable, and secure server-side Java applications.
Java EE is built on the basis of Java SE, which provides WEB services, component models, management, and communication APIs.
Can be used to implement enterprise-class service Oriented architecture (service-oriented Architecture,soa) and WEB 2.0 applications.
　　    * Java ME (Java platform,micro Edition). This version was formerly known as J2ME.
Java ME provides a robust and flexible environment for applications running on mobile devices and embedded devices such as mobile phones, PDAs, TV set-top boxes, and printers.
Java ME includes a flexible user interface, robust security model, many built-in network protocols, and rich support for Web and offline applications that can be dynamically downloaded.
Applications based on the Java ME specification need to be written once, can be used for many devices, and can take advantage of the native capabilities of each device.

The connections and differences between Java SE, Java EE, and Java Me