system.out.println (Java.home : ) system.getproperty (Java.home )；
system.out.println (' Java.class.path : ' ' Java.home ' system.getproperty (' Java.class.path ' ) )；
system.out.println (Java.specification.version : ) system.getproperty (Java.specification.version ) )
system.out.println (Java.specification.vendor : ) system.getproperty ) (Java.specification.vendor )；
system.out.println (Java.specification.name : ) system.getproperty (Java.specification.name )；
system.out.println (Java.version : ) system.getproperty (Java.version )；
system.out.println (Java.vendor : ) system.getproperty (Java.vendor ) )；
system.out.println (Java.vendor.URL : ) system.getproperty (Java.vendor.URL )；
system.out.println (Java.VM.specification.version : ) system.getproperty (Java.VM.specification.ver ication
system.out.println (Java.VM.specification.vendor : ) system.getproperty (Java.VM.specification.ven dication )
system.out.println (Java.VM.specification.name : ) system.getproperty (Java.VM.specification.name )。
system.out.println (Java.VM.version : ) system.getproperty (Java.VM.version )；
system.out.println (Java.VM.vendor : ) system.getproperty (Java.VM.vendor )；
system.out.println (Java.VM.name : ) system.getproperty (Java.VM.name )；
system.out.println (Java.class.version : ) system.getproperty (Java.class.version )；
system.out.println (OS.home : ) system.getproperty (OS.name )；
system.out.println (OS.arch : ) system.getproperty (OS.arch ) )；
system.out.println (OS.version : ) system.getproperty (OS.version )；
system.out.println (file.separator : ) system.getproperty (文件. separator )；
系统. out.println (path.separator : ) system.getproperty (path.separator )；
system.out.println (line.separator : ) system.getproperty (line.separator )；
system.out.println (user.name : ) system.getproperty (user.name )；
system.out.println (user.home : ) system.getproperty (user.home )；
system.out.println (user.dir : ) system.getproperty (user.dir ) )；