--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+var a = [1,2,3,4]
+with i = a.iterator do while i.is_ok do
+ print i.item
+ i.next
+end
+
+var m = new HashMap[Int, String]
+m[1] = "one"
+m[2] = "two"
+with i = m.iterator do while i.is_ok do
+ print i.key
+ print i.item
+ i.next
+end
+
+with f = "README.md".to_path.open_ro do
+ print f.read_line
+end