Support picking from arrays.

src/main/java/com/samskivert/util/Randoms.java

@@ -176,6 +176,22 @@ public class Randoms
         return pickPluck(iterable, ifEmpty, false);
     }
 
+    /**
+     * Pick a random element from the specified array, or return <code>ifEmpty</code>
+     * if it is empty.
+     *
+     * @throws NullPointerException if the array is null.
+     */
+    public <T> T pick (T[] array, T ifEmpty)
+    {
+        int size = array.length;
+        if (size == 0) {
+            return ifEmpty;
+        }
+
+        return array[_r.nextInt(size)];
+    }
+
     /**
      * Pick a random <em>key</em> from the specified mapping of weight values, or return
      * <code>ifEmpty</code> if no mapping has a weight greater than <code>0</code>. Each