Update examples

jdmota · Nov 29, 2021 · 3ef4f6f · 3ef4f6f
1 parent 4580e6e
commit 3ef4f6f
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Showing 3 changed files with 14 additions and 34 deletions.
diff --git a/examples/removable-iterator-with-init/Example2.java b/examples/removable-iterator-with-init/Example2.java
@@ -1,16 +1,13 @@
-public class Example2 {
+public class Example3 {
   public static void main(String[] args) {
-    BaseIterator it = new RemovableIterator();
+    BaseIterator it = new BaseIterator();
     it.init(args);
-    while (true) {
-      // Down-cast
-      RemovableIterator remIt = (RemovableIterator) it;
-      if (remIt.hasNext()) {
-        System.out.printf("Item: %s\n", remIt.next());
-        remIt.remove();
-        // Up-cast
-        it = remIt;
-      } else break;
+    while (!it.hasNext()) {
+      System.out.println(it.next());
     }
+    /*
+    If we pass an empty array:
+    Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
+    */
   }
 }
diff --git a/examples/removable-iterator-with-init/Example3.java b/examples/removable-iterator-with-init/Example3.java
diff --git a/examples/removable-iterator/Example2.java b/examples/removable-iterator/Example2.java
@@ -1,15 +1,11 @@
 public class Example2 {
   public static void main(String[] args) {
-    BaseIterator it = new RemovableIterator(args);
-    while (true) {
-      // Down-cast
-      RemovableIterator remIt = (RemovableIterator) it;
-      if (remIt.hasNext()) {
-        System.out.printf("Item: %s\n", remIt.next());
-        remIt.remove();
-        // Up-cast
-        it = remIt;
-      } else break;
+    RemovableIterator it = new RemovableIterator(args);
+    while (it.hasNext()) {
+      System.out.println(it.next());
+      it.remove();
     }
+    BaseIterator baseIt = it; // Up-cast
+    System.out.println(baseIt.remainingItems());
   }
 }