Java System. getproperty () method

Java. Version Java Runtime Environment version

Java. Vendor Java Runtime Environment vendor

Java. Vendor. url URL of the Java vendor

Java. Home Java installation directory

Java. VM. Specification. Version Java Virtual Machine standard version

Java. VM. Specification. Vendor Java virtual machine specification vendor

Java. VM. Specification. Name Java virtual machine specification name

Java. VM. Version Java Virtual Machine implementation version

Java. VM. Vendor Java Virtual Machine implementation vendor

Java. VM. Name Java Virtual Machine implementation name

Java. Specification. Version Java Runtime Environment Standard version

Java. Specification. Vendor Java Runtime Environment specification vendor

Java. Specification. Name Java Runtime Environment Standard name

Java. Class. Version Java class format version number

Java. Class. Path Java class path

Java. Library. Path: the list of paths searched when loading the library. Seven styles show Perfect faces.

Java. Io. tmpdir default temporary file path

Name of the JIT compiler to be used by Java. Compiler

Java. Ext. dirs: path of one or more extension Directories

OS. Name of the Operating System

OS. Arch Operating System Architecture

OS. Version

File. Separator file delimiter ("/" in UNIX)

Path. Separator path separator (":" in UNIX systems)

Line. Separator line separator ("/n" in UNIX ")

User. Name: Account name of the user

User. Home user's home directory

Current working directory of user. dir