Grabbing system profile metrics via Java

SystemProfiler.java

import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.io.File;
import java.lang.management.ManagementFactory;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Locale;
import java.util.TimeZone;


public class SystemProfiler {

	public static void main(String[] args) throws Exception {
		
		// system hardware
		System.out.println("Hardware: ");
	    System.out.println("Available processors (cores): " + Runtime.getRuntime().availableProcessors());
	    System.out.println("Free memory (bytes): " + Runtime.getRuntime().freeMemory());
	    long maxMemory = Runtime.getRuntime().maxMemory();
	    System.out.println("Maximum memory (bytes): " + (maxMemory == Long.MAX_VALUE ? "no limit" : maxMemory));
	    System.out.println("Total memory available to JVM (bytes): " +  Runtime.getRuntime().totalMemory());

	    // for each filesystem root, print info
	    System.out.println("\nFile Systems: ");
	    for (File root : File.listRoots()) {
	      System.out.println("File system root: " + root.getAbsolutePath());
	      System.out.println("Total space (bytes): " + root.getTotalSpace());
	      System.out.println("Free space (bytes): " + root.getFreeSpace());
	      System.out.println("Usable space (bytes): " + root.getUsableSpace());
	    }
	    
	    // for each screen device print 
	    System.out.println("\nScreen Devices: ");
	    int screenNumber = 0;
	    for(GraphicsDevice gd : GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices()){
	    	int width = gd.getDisplayMode().getWidth();
		    int height = gd.getDisplayMode().getHeight();
		    System.out.println("Screen " + screenNumber + ": " + width + "w X " + height + "h");
	    }
	    
	    // print supported font families
	    System.out.println("\nFont Families: ");
	    ArrayList<String> fontFamilies = new ArrayList<String>();
	    for(String font : GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames()){
	    	fontFamilies.add(font);
	    }
	    System.out.println("Supported Fonts: " + fontFamilies);
	    
	    // print system properties
	    System.out.println("\nSystem Properties: ");
	    for(Object propertyKey : System.getProperties().keySet()){
	    	String propertyValue = System.getProperty(propertyKey.toString());
	    	if(propertyKey.equals("line.separator")){
	    		propertyValue = propertyValue.replaceAll("\f", "\\f").replaceAll("\r", "\\r").replaceAll("\n", "\\n");
	    	}
	    	System.out.println(propertyKey.toString() + ": " + propertyValue);
	    }
	    
	    // network interfaces
	    System.out.println("\nNetwork Interfaces: ");
	    Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
	    while (e.hasMoreElements())
	    {
	        NetworkInterface n = e.nextElement();
	        System.out.print(n.getName());
	        Enumeration<InetAddress> ee = n.getInetAddresses();
	        while (ee.hasMoreElements()) {
	            InetAddress i = ee.nextElement();
	            System.out.print(", " + i.getHostAddress());
	        }
	        System.out.println();
	    }
	    
	    // hostname
	    System.out.println("\nHostname: " + InetAddress.getLocalHost().getHostName());
	    
	    // timezone
	    System.out.println("\nTimezone: " + TimeZone.getDefault().getDisplayName());
	    
	    // language
	    Locale locale = Locale.getDefault();
	    System.out.println("\nLocale: ");
	    System.out.println("Language: " + locale.getDisplayLanguage());
	    System.out.println("Country: " + locale.getDisplayCountry());
	    
	    // JVM Uptime
	    System.out.println("\nJVM Uptime: " + ManagementFactory.getRuntimeMXBean().getUptime());
	}

}