Add global settings wipe

src/net/apocalypselabs/symat/Interpreter.java

@@ -395,7 +395,7 @@ public class Interpreter extends javax.swing.JInternalFrame {
             try {
                 FileUtils.saveFile(commandsForExport,
                         FileUtils.getFileWithExtension(fc).toString(),
-                        false);
+                        true);
             } catch (IOException ex) {
                 JOptionPane.showInternalMessageDialog(this,
                         "Error saving: " + ex.getMessage(),

src/net/apocalypselabs/symat/PrefStorage.java

@@ -1,41 +1,41 @@
-/* 
+/*
  * CODE LICENSE =====================
  * Copyright (c) 2015, Apocalypse Laboratories
  * All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without modification,
  *  are permitted provided that the following conditions are met:
- * 
- * 1. Redistributions of source code must retain the above copyright notice, this 
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
  * list of conditions and the following disclaimer.
- * 
- * 2. Redistributions in binary form must reproduce the above copyright notice, 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
  * this list of conditions and the following disclaimer in the documentation and/or
  *  other materials provided with the distribution.
- * 
- * 3. Neither the name of the copyright holder nor the names of its contributors 
- * may be used to endorse or promote products derived from this software without 
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
  * specific prior written permission.
- * 
+ *
  * 4. You adhere to the Media License detailed below.  If you do not, this license
  * is automatically revoked and you must purge all copies of the software you
  * possess, in source or binary form.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
- *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+ *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * 
+ *
  * MEDIA LICENSE ====================
  * All images and other graphical files (the "graphics") included with this
  * software are copyright (c) 2015 Apocalypse Laboratories.  You may not distribute
- * the graphics or any program, source code repository, or other digital storage 
+ * the graphics or any program, source code repository, or other digital storage
  * media containing them without written permission from Apocalypse Laboratories.
  * This ban on distribution only applies to publicly available systems.
  * A password-protected network file share, USB drive, or other storage scheme that
@@ -89,6 +89,15 @@ public class PrefStorage {
         return true;
     }
 
+    /**
+     * Wipe all settings.
+     *
+     * @throws java.util.prefs.BackingStoreException
+     */
+    public static void wipe() throws BackingStoreException {
+        prefs.clear();
+    }
+
     // xkcd 221 compliance.
     int getRandomNumber() {
         return 4; // chosen by fair dice roll.