The father of James Gosling (JAVA) to the project manager, the JAVA language really knows the world started in 1995,
The JAVA platform
JavaSE (Java Platform, Standard Edition), calling it "the Java Platform Standard Edition,"
Java EE (Java Platform, Enterprise Edition), called "Java Platform Enterprise Edition,"
Java ME (Java platform, Micro Edition), call the Java platform, Micro Edition,
The characteristics of the Java
1. Simple
Object-oriented
2.3. (Java cross-platform design original intention is "a editor, running around and portability)
4. Safety
5. Multithreading
The JDK description
(1) the JDK (Java Development Kit), is a Java Development Kit,
(2) the JRE (Java Runtime Environment), is a Java Runtime Environment,
(3) the JVM (Java Virtual Machine), s is the Java Virtual Machine,
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