Allow MML config to be loaded in memory only

src/megameklab/com/MegaMekLab.java

@@ -163,7 +163,7 @@ private static void startup() {
         } catch (IOException e) {
             getLogger().warning(MegaMekLab.class, "startup()", "Could not load quirks");
         }
-        new CConfig();
+        CConfig.load();
         UnitUtil.loadFonts();
 
         // Add additional themes

src/megameklab/com/util/CConfig.java

@@ -116,31 +116,18 @@ public String shortName() {
     public static final String RS_SCALE_FACTOR = "rs_scale_factor";
     public static final String RS_SCALE_UNITS = "rs_scale_units";
 
-    private static Properties config;// config. player values.
-
-    // CONSTRUCTOR
-    public CConfig() {
-
-        if(!new File(CONFIG_DIR).exists()) {
-            new File(CONFIG_DIR).mkdir();
-        }
-
-        config = setDefaults();
-        // check to see if a config is present. if not, make one.
-        if (!(new File(CONFIG_FILE).exists()) && !(new File(CONFIG_BACKUP_FILE).exists())) {
-            createConfig();
-        }
-
-        CConfig.loadConfigFile();
-    }
+    /**
+     * Player configuration values.
+     */
+    private static Properties config = getDefaults();
 
     // METHODS
     /**
      * Private method that loads hardcoded defaults. These are loaded before the
      * players config values, adding any new configs in their default position
      * and ensuring that no config value is even missing.
      */
-    private Properties setDefaults() {
+    private static Properties getDefaults() {
         Properties defaults = new Properties();
 
         // Window Locations
@@ -165,6 +152,15 @@ private Properties setDefaults() {
         return defaults;
     }
 
+    /**
+     * Loads the MegaMekLab configuration.
+     */
+    public static void load() {
+        ensureConfigFileExists();
+
+        loadConfigFile();
+    }
+
     /**
      * Loads the Config file.
      */
@@ -203,17 +199,24 @@ public static void loadConfigFile() {
             ex.printStackTrace();
         }
     }
+
+    /**
+     * Creates a new Config file, and directories, if it is missing.
+     */
+    public static void ensureConfigFileExists() {
+        // check to see if a config is present. if not, make one.
+        if (!(new File(CONFIG_FILE).exists()) && !(new File(CONFIG_BACKUP_FILE).exists())) {
+            if(!new File(CONFIG_DIR).exists()) {
+                new File(CONFIG_DIR).mkdir();
+            }
 
-    // Creates a new config file
-    public void createConfig() {
-        try {
-            FileOutputStream fos = new FileOutputStream(CONFIG_FILE);
-            PrintStream ps = new PrintStream(fos);
-
-            ps.close();
-            fos.close();
-        } catch (Exception ex) {
-            System.exit(0);
+            try (FileOutputStream fos = new FileOutputStream(CONFIG_FILE);
+                PrintStream ps = new PrintStream(fos)) {
+                ps.close();
+                fos.close();
+            } catch (Exception ex) {
+                System.exit(0);
+            }
         }
     }