如：
複製程式碼 程式碼如下:
public class EnvTest {
public static void main(String args[]) {
tln(nv(args[0]));
}
}
執行結果：
C:java>java EnvTest OS
Windows_NT
又如：
複製程式碼 程式碼如下:
import ;
public class EnvDump {
public static void main(String args[]) {
for (y entry: nv()ySet()) {
tln(ey() + "=" + alue());
}
}
}
執行結果：
C:java>java EnvDump
PROCESSOR_ARCHITECTURE=x86
LOGONSERVER=ZZ3Z100
HOMEDRIVE=C:
HOMEPATH=Documents and ND-A7R5PDTM
SESSIONNAME=Console
TMP=C:DOCUME~1OWNER~OCALS~1TEMp
java_home=c:jdk1.5
windir=C:WINDOWS
ant_home=c:ant1.6
PROCESSOR_IDENTIFIER=x86 Family 15 Model 2 Stepping 4, GenuineIntel
SystemDrive=C:
USERPROFILE=C:Documents and ND-A7R5PDTM
PATHEXT=;;;;;;;;;
CommonProgramFiles=C:Program FilesCommon Files
NUMBER_OF_PROCESSORS=1
ComSpec=C:
COMPUTERNAME=ZZ3Z100
OS=Windows_NT
USERNAME=Owner
CLIENTNAME=Console
=ExitCode=00000000
TEMP=C:DOCUME~1OWNER~OCALS~1Temp
USERDOMAIN=ZZ3Z100
ALLUSERSPROFILE=C:Documents and SettingsAll OWS
PROCESSOR_LEVEL=15
SystemRoot=C:WINDOWS
classpath=c:jdk1.5lib;c:java
=C:=C:java
APPDATA=C:Documents and ND-A7R5PDTMApplication Data
Path=C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSSystem32Wbem;
c:jdk1.5bin;c:ant1.6bin
PROMPT=$P$G
PROCESSOR_REVISION=0204
ProgramFiles=C:Program Files
C:java>
