The Java platform is the platform on which software written in the Java programming language runs. It is the intermediary between Java software and computer systems. It was originally designed to be used in desktop programs such as Applet, but was later gradually transferred to the server side. use.
java is a programming language that can run on different operating systems (such as windows, unix, etc.), java platform It refers to system software running on various terminals (such as PCs, servers, mobile devices, and embedded devices). (Recommended Learning: Java Course )
# PC Java program was developed with javase. The Java program on the server side was developed by Javaee. It was developed using javaME.
Java runtime environment, JavaRuntimeEnvironment, referred to as JRE, is the software required to run programs written in Java on any platform. End users can obtain and use the JRE as software or plug-ins.
Sun also released a more complex version of JRE called JDK, the Java 2 Development Kit, which contains the compiler, reference documentation, and debugger required by Java.
Java 2 Micro Edition Concept
J2ME (Java 2 Micro Edition) is an integral part of Java 2. It is also called J2SE and J2EE. According to Sun's definition: J2ME is a highly optimized Java operating environment, mainly targeted at consumer electronic devices, such as cellular phones and video phones, digital set-top boxes, car navigation systems, etc.
J2ME technology was officially launched at the JavaOne Developer Conference in 1999. It transplants the platform-independent features of the Java language to small electronic devices, allowing applications to be shared between mobile wireless devices.
J2SE commercial version, standard version (Java2 Standard Edition) is positioned on the client side and is mainly used for programming desktop application software.
J2SE contains the classes that form the core of the Java language.
J2EE Java2 Platform, Enterprise Edition
J2EE is a set of technical architecture that is completely different from traditional application development, including many components, mainly It can simplify and standardize the development and deployment of application systems, thereby improving portability, security and reuse value.
The core of J2EE is a set of technical specifications and guidelines. The various components, service architectures and technical levels included in it all have common standards and specifications, allowing various platforms that follow the J2EE architecture to There is good compatibility, which solves the dilemma that in the past the information products used by the enterprise's back-end were incompatible with each other, resulting in difficulty in interoperability within or outside the enterprise.
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