fixed a bug

src/main/java/io/zipcoder/MonkeyTypewriter.java

@@ -49,7 +49,9 @@ public class MonkeyTypewriter {
         // Print out the copied versions here.
         System.out.println("Unsafe Copier: ");
         System.out.println(dangerWillRobinson.copied);
+        System.out.println("Correctly Copied: " + dangerWillRobinson.copied.equals(introduction));
         System.out.println("Safe Copier: ");
         System.out.println(safetyFirst.copied);
+        System.out.println("Correctly Copied: " + safetyFirst.copied.equals(introduction));
     }
 }

src/main/java/io/zipcoder/SafeCopier.java

@@ -13,16 +13,17 @@ public class SafeCopier extends Copier {
 
     public SafeCopier(String toCopy) {
         super(toCopy);
+        alohomora = new ReentrantReadWriteLock();
     }
 
     public void run() {
-        alohomora = new ReentrantReadWriteLock();
         alohomora.writeLock().lock();
         alohomora.readLock().lock();
         try {
             while (stringIterator.hasNext()) {
                 copied += stringIterator.next() + " ";
             }
+            copied = copied.trim();
         } finally {
             alohomora.writeLock().unlock();
             alohomora.readLock().unlock();

src/main/java/io/zipcoder/UnsafeCopier.java

@@ -13,5 +13,6 @@ public class UnsafeCopier extends Copier {
         while (stringIterator.hasNext()) {
             copied += stringIterator.next() + " ";
         }
+        copied = copied.trim();
     }
 }