Check System Properties of Raspberry Pi, using Java

Once installed Java 8 release candidate on Raspberry Pi, we can create a java program, listProperties.java, to list System Properties, to verify the installation.

listProperties.java

import java.util.Properties;
import java.util.Set;

class listProperties {
    
    public static void main(String[] args) {
        
        Properties properties = System.getProperties();
        System.out.println(properties.toString());
        System.out.println("\n");
        
        Set<String> setPropertyNames = 
            properties.stringPropertyNames();
        for (String propName : setPropertyNames) {
            System.out.println(
                propName + " : " +
                System.getProperty(propName));
        }
    }
}

To compile listProperties.java
$ javac listProperties.java

Run generated listProperties.class
$ java listProperties

The result will be something like:

---

pi@raspberrypi ~/worksJava $ java listProperties

{java.runtime.name=Java(TM) SE Runtime Environment, sun.boot.library.path=/opt/jdk1.8.0/jre/lib/arm, java.vm.version=25.0-b69, java.vm.vendor=Oracle Corporation, java.vendor.url=http://java.oracle.com/, path.separator=:, java.vm.name=Java HotSpot(TM) Client VM, file.encoding.pkg=sun.io, user.country=GB, sun.java.launcher=SUN_STANDARD, sun.os.patch.level=unknown, java.vm.specification.name=Java Virtual Machine Specification, user.dir=/home/pi/worksJava, java.runtime.version=1.8.0-b128, java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment, java.endorsed.dirs=/opt/jdk1.8.0/jre/lib/endorsed, os.arch=arm, java.io.tmpdir=/tmp, line.separator=

, java.vm.specification.vendor=Oracle Corporation, os.name=Linux, sun.jnu.encoding=UTF-8, java.library.path=/usr/java/packages/lib/arm:/lib:/usr/lib, java.specification.name=Java Platform API Specification, java.class.version=52.0, sun.management.compiler=HotSpot Client Compiler, os.version=3.10.28+, user.home=/home/pi, sun.arch.abi=gnueabihf, user.timezone=Asia/Hong_Kong, java.awt.printerjob=sun.print.PSPrinterJob, file.encoding=UTF-8, java.specification.version=1.8, java.class.path=., user.name=pi, java.vm.specification.version=1.8, sun.java.command=listProperties, java.home=/opt/jdk1.8.0/jre, sun.arch.data.model=32, user.language=en, java.specification.vendor=Oracle Corporation, awt.toolkit=sun.awt.X11.XToolkit, java.vm.info=mixed mode, java.version=1.8.0, java.ext.dirs=/opt/jdk1.8.0/jre/lib/ext:/usr/java/packages/lib/ext, sun.boot.class.path=/opt/jdk1.8.0/jre/lib/resources.jar:/opt/jdk1.8.0/jre/lib/rt.jar:/opt/jdk1.8.0/jre/lib/sunrsasign.jar:/opt/jdk1.8.0/jre/lib/jsse.jar:/opt/jdk1.8.0/jre/lib/jce.jar:/opt/jdk1.8.0/jre/lib/charsets.jar:/opt/jdk1.8.0/jre/lib/jfr.jar:/opt/jdk1.8.0/jre/classes, java.vendor=Oracle Corporation, file.separator=/, java.vendor.url.bug=http://bugreport.sun.com/bugreport/, sun.io.unicode.encoding=UnicodeLittle, sun.cpu.endian=little, sun.cpu.isalist=}

java.runtime.name : Java(TM) SE Runtime Environment

sun.boot.library.path : /opt/jdk1.8.0/jre/lib/arm

java.vm.version : 25.0-b69

java.vm.vendor : Oracle Corporation

java.vendor.url : http://java.oracle.com/

path.separator : :

java.vm.name : Java HotSpot(TM) Client VM

file.encoding.pkg : sun.io

user.country : GB

sun.java.launcher : SUN_STANDARD

sun.os.patch.level : unknown

java.vm.specification.name : Java Virtual Machine Specification

user.dir : /home/pi/worksJava

java.runtime.version : 1.8.0-b128

java.awt.graphicsenv : sun.awt.X11GraphicsEnvironment

java.endorsed.dirs : /opt/jdk1.8.0/jre/lib/endorsed

os.arch : arm

java.io.tmpdir : /tmp

line.separator : 

java.vm.specification.vendor : Oracle Corporation

os.name : Linux

sun.jnu.encoding : UTF-8

java.library.path : /usr/java/packages/lib/arm:/lib:/usr/lib

java.specification.name : Java Platform API Specification

java.class.version : 52.0

sun.management.compiler : HotSpot Client Compiler

os.version : 3.10.28+

user.home : /home/pi

sun.arch.abi : gnueabihf

user.timezone : Asia/Hong_Kong

java.awt.printerjob : sun.print.PSPrinterJob

file.encoding : UTF-8

java.specification.version : 1.8

user.name : pi

java.class.path : .

java.vm.specification.version : 1.8

sun.arch.data.model : 32

java.home : /opt/jdk1.8.0/jre

sun.java.command : listProperties

java.specification.vendor : Oracle Corporation

user.language : en

awt.toolkit : sun.awt.X11.XToolkit

java.vm.info : mixed mode

java.version : 1.8.0

java.ext.dirs : /opt/jdk1.8.0/jre/lib/ext:/usr/java/packages/lib/ext

sun.boot.class.path : /opt/jdk1.8.0/jre/lib/resources.jar:/opt/jdk1.8.0/jre/lib/rt.jar:/opt/jdk1.8.0/jre/lib/sunrsasign.jar:/opt/jdk1.8.0/jre/lib/jsse.jar:/opt/jdk1.8.0/jre/lib/jce.jar:/opt/jdk1.8.0/jre/lib/charsets.jar:/opt/jdk1.8.0/jre/lib/jfr.jar:/opt/jdk1.8.0/jre/classes

java.vendor : Oracle Corporation

file.separator : /

java.vendor.url.bug : http://bugreport.sun.com/bugreport/

sun.cpu.endian : little

sun.io.unicode.encoding : UnicodeLittle

sun.cpu.isalist : 

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