Align wording with test

Author: Justin Ryan

src/main/java/learnrxjava/ComposableListSolutions.java

@@ -793,7 +793,7 @@ public static ComposableList<JSON> exercise19() {
                     return v.boxarts.reduce((max, box) -> {
                         int maxSize = max.height * max.width;
                         int boxSize = box.height * box.width;
-                        if(boxSize > maxSize) {
+                        if(boxSize < maxSize) {
                             return box;
                         } else {
                             return max;

src/main/java/learnrxjava/ObservableExercises.java

@@ -7,7 +7,7 @@
 public class ObservableExercises {
 
     /**
-     * Return an Observable that emits a single value "Hello World"
+     * Return an Observable that emits a single value "Hello World!"
      * 
      * @return "Hello World!"
      */

src/main/java/learnrxjava/examples/ScanVsReduceExample.java

@@ -7,14 +7,14 @@
 public class ScanVsReduceExample {
 
     public static void main(String... args) {
-        Observable.range(0, 10).reduce(() -> new ArrayList<Integer>(), (list, i) -> {
+        Observable.range(0, 10).reduce(new ArrayList<>(), (list, i) -> {
             list.add(i);
             return list;
         }).forEach(System.out::println);
 
         System.out.println("... vs ...");
 
-        Observable.range(0, 10).scan(() -> new ArrayList<Integer>(), (list, i) -> {
+        Observable.range(0, 10).scan(new ArrayList<>(), (list, i) -> {
             list.add(i);
             return list;
         }).forEach(System.out::println);

src/test/java/learnrxjava/ObservableSolutionsTest.java

@@ -168,13 +168,13 @@ public void exerciseMovie() {
         Map<Integer, JSON> map = getImpl().exerciseMovie(movies).toMap(i -> (int) i.get("id")).toBlocking().single();
         System.out.println(map);
         assertTrue(map.containsKey(70111470));
-        assertEquals(map.get(70111470).toString(), "{boxart=http://cdn-0.nflximg.com/images/2891/DieHard200.jpg, id=70111470, title=Die Hard}");
+        assertEquals(map.get(70111470).toString(), "{boxart=http://cdn-0.nflximg.com/images/2891/DieHard150.jpg, id=70111470, title=Die Hard}");
         assertTrue(map.containsKey(654356453));
-        assertEquals(map.get(654356453).toString(), "{boxart=http://cdn-0.nflximg.com/images/2891/BadBoys200.jpg, id=654356453, title=Bad Boys}");
+        assertEquals(map.get(654356453).toString(), "{boxart=http://cdn-0.nflximg.com/images/2891/BadBoys140.jpg, id=654356453, title=Bad Boys}");
         assertTrue(map.containsKey(65432445));
-        assertEquals(map.get(65432445).toString(), "{boxart=http://cdn-0.nflximg.com/images/2891/TheChamber200.jpg, id=65432445, title=The Chamber}");
+        assertEquals(map.get(65432445).toString(), "{boxart=http://cdn-0.nflximg.com/images/2891/TheChamber130.jpg, id=65432445, title=The Chamber}");
         assertTrue(map.containsKey(675465));
-        assertEquals(map.get(675465).toString(), "{boxart=http://cdn-0.nflximg.com/images/2891/Fracture300.jpg, id=675465, title=Fracture}");
+        assertEquals(map.get(675465).toString(), "{boxart=http://cdn-0.nflximg.com/images/2891/Fracture120.jpg, id=675465, title=Fracture}");
     }
 
     @Test