本文格式為Word版，下載可任意編輯——訪問java15環(huán)境變量訪問java1.5環(huán)境變量

如：

復(fù)制代碼代碼如下:

publicclassEnvTest

publicstaticvoidmainStringargs[]

System.out.printlnSystem.getenvargs[0];

運(yùn)行結(jié)果：

C:javajavaEnvTestOS

Windows_NT

又如：

復(fù)制代碼代碼如下:

importjava.util.Map;

publicclassEnvDump

publicstaticvoidmainStringargs[]

forMap.Entryentry:System.getenv.entrySet

System.out.printlnentry.getKey+=+entry.getValue;

運(yùn)行結(jié)果：

C:javajavaEnvDump

PROCESSOR_ARCHITECTURE=x86

LOGONSERVER=ZZ3Z100

HOMEDRIVE=C:

HOMEPATH=DocumentsandSettingsOwner.LEGEND-A7R5PDTM

SESSIONNAME=Console

TMP=C:DOCUME~1OWNER~1.LEGLOCALS~1Temp

java_home=c:jdk1.5

windir=C:WINDOWS

ant_home=c:ant1.6

PROCESSOR_IDENTIFIER=x86Family15Model2Stepping4,GenuineIntel

SystemDrive=C:

USERPROFILE=C:DocumentsandSettingsOwner.LEGEND-A7R5PDTM

PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH

CommonProgramFiles=C:ProgramFilesCommonFiles

NUMBER_OF_PROCESSORS=1

ComSpec=C:WINDOWSsystem32cmd.exe

COMPUTERNAME=ZZ3Z100

OS=Windows_NT

USERNAME=Owner

CLIENTNAME=Console

=ExitCode=00000000

TEMP=C:DOCUME~1OWNER~1.LEGLOCALS~1Temp

USERDOMAIN=ZZ3Z100

ALLUSERSPROFILE=C:DocumentsandSettingsAllUsers.WINDOWS

PROCESSOR_LEVEL=15

SystemRoot=C:WINDOWS

classpath=c:jdk1.5lib;c:java

=C:=C:java

APPDATA=C:DocumentsandSettingsOwner.LEGEND-A7R5PDTMApplicationData

Path=C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSSystem32Wbem;

c:jdk1.5bin;c:ant1.6bin

PRO