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John Peter
Pune, Maharashtra, India
How to get system information in java? in Computer software engineer articles of One day One Thing to Know
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System.getProperties() to get all information about system or hardware in JAVA.

   1. Java version
   2. OS name
   3. Java and Jre location
   and More

Example in JAVA
import java.lang.*;

public class Example{
    public static void main(String args[]) throws Exception {       
        for (Object propertyKeyName:System.getProperties().keySet()){
            System.out.println(propertyKeyName+" - "+System.getProperty(propertyKeyName.toString()));
        }
    }
}
Output 
java.runtime.name - Java(TM) SE Runtime Environment
sun.boot.library.path - D:\java\jre6\bin
java.vm.version - 16.0-b13
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
sun.java.launcher - SUN_STANDARD
user.country - US
sun.os.patch.level -
java.vm.specification.name - Java Virtual Machine Specification
java.runtime.version - 1.6.0_18-b07
java.awt.graphicsenv - sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs - D:\java\jre6\lib\endorsed
os.arch - x86
java.io.tmpdir - C:\Users\SmartPC\AppData\Local\Temp\
line.separator -
java.vm.specification.vendor - Sun Microsystems Inc.
user.variant -
os.name - Windows 7
sun.jnu.encoding - Cp1252
java.specification.name - Java Platform API Specification
java.class.version - 50.0
sun.management.compiler - HotSpot Client Compiler
os.version - 6.1
user.home - C:\Users\SmartPC
user.timezone -
java.awt.printerjob - sun.awt.windows.WPrinterJob
file.encoding - Cp1252
java.specification.version - 1.6
java.class.path - D:\java\build\classes;
                C:\apache-tomcat-7.0.14\lib\tomcat-i18n-ja.jar;
                C:\apache-tomcat-7.0.14\lib\tomcat-util.jar
user.name - SmartPC
java.vm.specification.version - 1.0
java.home - D:\java\jre6
sun.arch.data.model - 32
user.language - en
java.specification.vendor - Sun Microsystems Inc.
awt.toolkit - sun.awt.windows.WToolkit
java.vm.info - mixed mode
java.version - 1.6.0_18
java.ext.dirs - D:\java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path - D:\java\jre6\lib\resources.jar;
                    D:\java\jre6\lib\rt.jar;
                    D:\java\jre6\lib\sunrsasign.jar;
                    D:\java\jre6\lib\jsse.jar;
                    D:\java\jre6\lib\jce.jar;
                    D:\java\jre6\lib\charsets.jar;
                    D:\java\jre6\classes
java.vendor - Sun Microsystems Inc.
file.separator - \
java.vendor.url.bug - http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding - UnicodeLittle
sun.cpu.endian - little
sun.desktop - windows
sun.cpu.isalist - pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

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