List out the system properties values - Java Source Code

import java.util.Properties;
public class ListProperties {

/** Creates a new instance of ListProperties */
public ListProperties() {
}

private void getListProperties() {
Properties props = System.getProperties();
props.list(System.out);
}

public static void main(String[] args) {
ListProperties listProps = new ListProperties();
listProps.getListProperties();
}
}

http://java.sun.com/javase/6/docs/api/java/util/Properties.html

Output
-- listing properties --
java.runtime.name=Java(TM) 2 Runtime Environment, Stand...
sun.boot.library.path=C:\Program Files\Java\jdk1.5.0_06\jre...
java.vm.version=1.5.0_06-b05
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=GB
sun.os.patch.level=Service Pack 3
java.vm.specification.name=Java Virtual Machine Specification
user.dir=E:\JavaProjects\JavaTest
java.runtime.version=1.5.0_06-b05
java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs=C:\Program Files\Java\jdk1.5.0_06\jre...
os.arch=x86
java.io.tmpdir=C:\DOCUME~1\SC0031~1\LOCALS~1\Temp\
line.separator=

java.vm.specification.vendor=Sun Microsystems Inc.
user.variant=
os.name=Windows XP
sun.jnu.encoding=Cp1252
java.library.path=C:\Program Files\Java\jdk1.5.0_06\jre...
java.specification.name=Java Platform API Specification
java.class.version=49.0
sun.management.compiler=HotSpot Client Compiler
os.version=5.1
user.home=C:\Documents and Settings\sc0031744
user.timezone=
java.security.policy=applet.policy
java.awt.printerjob=sun.awt.windows.WPrinterJob
file.encoding=Cp1252
java.specification.version=1.5
user.name=sc0031744
java.class.path=C:\Program Files\netbeans-5.0\platfor...
java.vm.specification.version=1.0
sun.arch.data.model=32
java.home=C:\Program Files\Java\jdk1.5.0_06\jre
java.specification.vendor=Sun Microsystems Inc.
user.language=en
awt.toolkit=sun.awt.windows.WToolkit
java.vm.info=mixed mode, sharing
java.version=1.5.0_06
java.ext.dirs=C:\Program Files\Java\jdk1.5.0_06\jre...
sun.boot.class.path=C:\Program Files\Java\jdk1.5.0_06\jre...
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.desktop=windows
sun.cpu.isalist=