Several important features of JAVA

Java has several features: This is my understanding of java's features and their induction: (1) java's simplicity: Compared with C ++, the syntax is simple and the pointer syntax is canceled; memory Allocation and recovery do not require our transitional attention. C ++ can inherit more, but java can only be a single inheritance, relative to the class. (Note: interfaces can be inherited more) (2) java object-oriented: java is pure object-oriented, but jquery is more pure object-oriented. As mentioned in the java programming ideology book, "Everything is object !" This facilitates human conception and design, and is more in line with the way people think about problems (3). distributed: Mainly used on EJB (4). Security: java syntax limits the security of the source program. First, the compiler checks the source code in the first step (5). cross-platform: java can span different operating system platforms. How is platform independence cross-platform? The JVM specifications are the same in different operating systems. It is supported by JVM loading into various operating systems, shielding the differences between the underlying operating systems (6) and high performance: open and closed principle-open to extensions, and instant compilation of modified and closed java (7), multithreading: Java Development Process: (1), edit first. java source code (2), compiled. class bytecode file byte code (a binary file) (3), finally loaded and interpreted by the Java Virtual Machine (JVM), although these are very basic knowledge, but these are my new understandings of java, and there may still be many places that are not in place, but I would like to stick to the underlying knowledge. Please share them with me. If you have any suggestions, please give them! I want to learn more!