Go语言视频零基础入门到精通

javalearner

下面一行代码的程序输出java运行环境的属性，能帮我们分析一些程序的问题：
如文件分隔符，默认的文件编码格式等。

public class TestProperties{
       public static void main(String[] args){
         System.getProperties().list(System.out);
       }
}

在我的机子上输出：

C:java>javac  TestProperties.java

C:java>java   TestProperties
-- listing properties --  
  
   
   
     
   

   
   
  

java.runtime.name=Java(TM) 2 Runtime Environment, Stand...
sun.boot.library.path=C:Program FilesJavaj2re1.4.2_03in
java.vm.version=1.4.2_03-b02
java.vm.vendor=Sun Microsystems Inc.
java.vendor.url=http://java.sun.com/
path.separator=;
java.vm.name=Java HotSpot(TM) Client VM
file.encoding.pkg=sun.io
user.country=CN
sun.os.patch.level=Service Pack 1
java.vm.specification.name=Java Virtual Machine Specification
user.dir=C:java
java.runtime.version=1.4.2_03-b02
java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs=C:Program FilesJavaj2re1.4.2_03li...
os.arch=x86
java.io.tmpdir=C:DOCUME~1cwbLOCALS~1Temp
line.separator=

java.vm.specification.vendor=Sun Microsystems Inc.
user.variant=
os.name=Windows XP
sun.java2d.fontpath=
java.library.path=C:WINDOWSsystem32;.;C:WINDOWSSyst...
java.specification.name=Java Platform API Specification
java.class.version=48.0
java.util.prefs.PreferencesFactory=java.util.prefs.WindowsPreferencesFac...
os.version=5.1
user.home=C:Documents and Settingscwb
user.timezone=
java.awt.printerjob=sun.awt.windows.WPrinterJob
file.encoding=GBK
java.specification.version=1.4
user.name=cwb
java.class.path=d:j2sdk1.4.2lib;c:j2ee1.3.1libj2...
java.vm.specification.version=1.0
sun.arch.data.model=32
java.home=C:Program FilesJavaj2re1.4.2_03
java.specification.vendor=Sun Microsystems Inc.
user.language=zh
awt.toolkit=sun.awt.windows.WToolkit
java.vm.info=mixed mode
java.version=1.4.2_03
java.ext.dirs=C:Program FilesJavaj2re1.4.2_03li...
sun.boot.class.path=C:Program FilesJavaj2re1.4.2_03li...
java.vendor=Sun Microsystems Inc.
file.separator=
java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport...
sun.cpu.endian=little
sun.io.unicode.encoding=UnicodeLittle
sun.cpu.isalist=pentium i486 i386

C:java>