Moves some code to the Economy helper, and fixes code formatting

src/main/java/net/knarcraft/bookswithoutborders/command/CommandBooksWithoutBorders.java

@@ -87,8 +87,9 @@ public class CommandBooksWithoutBorders implements CommandExecutor {
 
     /**
      * Shows information about the given command
+     *
      * @param command <p>The command to get information about</p>
-     * @param sender <p>The sender asking to see command info</p>
+     * @param sender  <p>The sender asking to see command info</p>
      */
     private void showCommandInfo(String command, CommandSender sender) {
         PluginCommand pluginCommand = BooksWithoutBorders.getInstance().getCommand(command);

src/main/java/net/knarcraft/bookswithoutborders/command/CommandCopy.java

@@ -1,6 +1,7 @@
 package net.knarcraft.bookswithoutborders.command;
 
 import net.knarcraft.bookswithoutborders.BooksWithoutBorders;
+import net.knarcraft.bookswithoutborders.utility.EconomyHelper;
 import net.knarcraft.bookswithoutborders.utility.InputCleaningHelper;
 import net.knarcraft.bookswithoutborders.utility.InventoryHelper;
 import org.bukkit.command.Command;
@@ -48,23 +49,19 @@ public class CommandCopy implements CommandExecutor {
 
                 if (booksWithoutBorders.booksHavePrice() &&
                         !player.hasPermission("bookswithoutborders.bypassBookPrice") &&
-                        booksWithoutBorders.cannotPayForBookPrinting(player, copies)) {
+                        EconomyHelper.cannotPayForBookPrinting(player, copies)) {
                     return false;
                 }
 
                 heldBook.setAmount(heldBook.getAmount() + copies);
                 BooksWithoutBorders.sendSuccessMessage(player, "Book copied!");
-            } else {
-                BooksWithoutBorders.sendErrorMessage(player, "Book not copied!");
-                BooksWithoutBorders.sendErrorMessage(player, "Number specified was invalid!");
-                return false;
+                return true;
             }
-        } catch (NumberFormatException e) {
-            BooksWithoutBorders.sendErrorMessage(player, "Book not copied!");
-            BooksWithoutBorders.sendErrorMessage(player, "Number specified was invalid!");
-            return false;
+        } catch (NumberFormatException ignored) {
         }
-        return true;
+        BooksWithoutBorders.sendErrorMessage(player, "Book not copied!");
+        BooksWithoutBorders.sendErrorMessage(player, "Number specified was invalid!");
+        return false;
     }
 
     /**

src/main/java/net/knarcraft/bookswithoutborders/command/CommandGive.java

@@ -28,10 +28,11 @@ public class CommandGive implements CommandExecutor {
 
     /**
      * Gives a book to another player
-     * @param sender <p>The sender trying to give a book</p>
-     * @param args <p>The arguments given</p>
+     *
+     * @param sender     <p>The sender trying to give a book</p>
+     * @param args       <p>The arguments given</p>
      * @param givePublic <p>Whether to give a public book</p>
-     * @param folder <p>The folder containing the book to load</p>
+     * @param folder     <p>The folder containing the book to load</p>
      * @return <p>True if the book was given successfully</p>
      */
     boolean giveBook(CommandSender sender, String[] args, boolean givePublic, String folder) {

src/main/java/net/knarcraft/bookswithoutborders/command/GiveTabCompleter.java

@@ -1,7 +1,6 @@
 package net.knarcraft.bookswithoutborders.command;
 
 import net.knarcraft.bookswithoutborders.BooksWithoutBorders;
-import net.knarcraft.bookswithoutborders.utility.FileHelper;
 import org.bukkit.Server;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;