2.JAVA entry _Java language cross-platform management

Java language cross-platform management

1. Platform: OS platform, such as Windows, Mac, Linux.
2. Cross-platform refers to the JAVA program can run on any operating system. This served as the "translation" work called "JVM", such as for Windows select "Windows version of the JVM".
3. Summary: On the operating system needs to run JAVA applications, install an operating system corresponding to the JAVA virtual machine (JVM Java Virtual Machine) can be.