java.version Java Runtime Environment version
java.vendor Java Runtime Environment vendor
java.vendor.url Java vendor URL
java.home Java installation directory
java.vm.specification.version Java Virtual Machine specification 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 specification version
java.specification.vendor Java Runtime Environment specification vendor
java.specification.name Java Runtime Environment specification name
java.class.version Java class format version number
java.class.path Java class path
java.library.path List of paths to search when loading libraries
java.io.tmpdir Default temp file path
java.compiler Name of JIT compiler to use
java.ext.dirs Path of extension directory or directories
os.name Operating system name
os.arch Operating system architecture
os.version Operating system version
file.separator File separator ("/" on UNIX)
path.separator Path separator (":" on UNIX)
line.separator Line separator ("\n" on UNIX)
user.name User's account name
user.home User's home directory
user.dir User's current working directory
Properties props=System.getProperties(); //系統(tǒng)屬性
System.out.println("Java的運(yùn)行環(huán)境版本："+props.getProperty("java.version"));
System.out.println("Java的運(yùn)行環(huán)境供應(yīng)商："+props.getProperty("java.vendor"));
System.out.println("Java供應(yīng)商的URL："+props.getProperty("java.vendor.url"));
System.out.println("Java的安裝路徑："+props.getProperty("java.home"));
System.out.println("Java的虛擬機(jī)規(guī)范版本："+props.getProperty("java.vm.specification.version"));
System.out.println("Java的虛擬機(jī)規(guī)范供應(yīng)商："+props.getProperty("java.vm.specification.vendor"));
System.out.println("Java的虛擬機(jī)規(guī)范名稱："+props.getProperty("java.vm.specification.name"));
System.out.println("Java的虛擬機(jī)實(shí)現(xiàn)版本："+props.getProperty("java.vm.version"));
System.out.println("Java的虛擬機(jī)實(shí)現(xiàn)供應(yīng)商："+props.getProperty("java.vm.vendor"));
System.out.println("Java的虛擬機(jī)實(shí)現(xiàn)名稱："+props.getProperty("java.vm.name"));
System.out.println("Java運(yùn)行時(shí)環(huán)境規(guī)范版本："+props.getProperty("java.specification.version"));
System.out.println("Java運(yùn)行時(shí)環(huán)境規(guī)范供應(yīng)商："+props.getProperty("java.specification.vender"));
System.out.println("Java運(yùn)行時(shí)環(huán)境規(guī)范名稱："+props.getProperty("java.specification.name"));
System.out.println("Java的類格式版本號(hào)："+props.getProperty("java.class.version"));
System.out.println("Java的類路徑："+props.getProperty("java.class.path"));
System.out.println("加載庫時(shí)搜索的路徑列表："+props.getProperty("java.library.path"));
System.out.println("默認(rèn)的臨時(shí)文件路徑："+props.getProperty("java.io.tmpdir"));
System.out.println("一個(gè)或多個(gè)擴(kuò)展目錄的路徑："+props.getProperty("java.ext.dirs"));
System.out.println("操作系統(tǒng)的名稱："+props.getProperty("os.name"));
System.out.println("操作系統(tǒng)的構(gòu)架："+props.getProperty("os.arch"));
System.out.println("操作系統(tǒng)的版本："+props.getProperty("os.version"));
System.out.println("文件分隔符："+props.getProperty("file.separator")); //在 unix 系統(tǒng)中是＂／＂
System.out.println("路徑分隔符："+props.getProperty("path.separator")); //在 unix 系統(tǒng)中是＂:＂
System.out.println("行分隔符："+props.getProperty("line.separator")); //在 unix 系統(tǒng)中是＂/n＂
System.out.println("用戶的賬戶名稱："+props.getProperty("user.name"));
System.out.println("用戶的主目錄："+props.getProperty("user.home"));
System.out.println("用戶的當(dāng)前工作目錄："+props.getProperty("user.dir"));