package net.sf.openrocket.util; import java.util.SortedSet; import java.util.TreeSet; public class PrintProperties { public static void main(String[] args) { // Sort the keys SortedSet<String> keys = new TreeSet<String>(); for (Object key: System.getProperties().keySet()) { keys.add((String)key); } for (String key: keys) { System.out.println(key + "=" + System.getProperty((String)key)); } } }