Java is the general name for the Java object-oriented programming language and Java platform launched by Sun Microsystems in May 1995. It was jointly developed by James Gosling and colleagues and officially launched in 1995.
Java is an object-oriented programming language that not only absorbs the various advantages of the C language, but also abandons the incomprehensible multiple inheritance, pointers, etc. in C Concept, so the Java language has two characteristics: powerful and easy to use.
As a representative of static object-oriented programming languages, Java language perfectly implements object-oriented theory and allows programmers to perform complex programming with an elegant way of thinking.
The Java language has the characteristics of simplicity, object-oriented, distributed, robustness, security, platform independence and portability, multi-threading, and dynamics. Java can write desktop applications, Web applications, distributed systems and embedded system applications, etc.
Java is divided into three systems:
JavaSE (J2SE) (Java2 Platform Standard Edition, java platform standard edition)
JavaEE(J2EE)(Java 2 Platform, Enterprise Edition, java platform Enterprise Edition)
JavaME(J2ME)(Java 2 Platform Micro Edition, java platform miniature version).
In June 2005, the JavaOne conference was held, and SUN released Java SE 6. At this time, various versions of Java had been renamed to remove the number "2": J2EE was renamed Java EE, J2SE was renamed Java SE, and J2ME was renamed Java ME.
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