diff --git a/examples/functions/function_call_chain.own b/examples/functions/function_call_chain.own
new file mode 100644
index 0000000..a3791d4
--- /dev/null
+++ b/examples/functions/function_call_chain.own
@@ -0,0 +1,3 @@
+def f() = def() = def() = def() = "Function call chaining: f()()()()"
+
+println f()()()()
\ No newline at end of file
diff --git a/examples/functions/function_chain.own b/examples/functions/function_chain.own
new file mode 100644
index 0000000..c73b16d
--- /dev/null
+++ b/examples/functions/function_chain.own
@@ -0,0 +1,9 @@
+def calc() = {
+  "add": ::add,
+  "sub": ::minus
+}
+def add(x, y) = x + y
+def minus(x, y) = x - y
+
+println calc().add(77, 42)
+println calc().sub(77, 42)
\ No newline at end of file
diff --git a/examples/functions/stream.own b/examples/functions/stream.own
new file mode 100644
index 0000000..2deb5cc
--- /dev/null
+++ b/examples/functions/stream.own
@@ -0,0 +1,26 @@
+use "std"
+use "functional"
+
+println "x, square(x), cube(x) for even numbers"
+data = [1,2,3,4,5,6,7,8,9]
+stream(data)
+  .filter(def(x) = x % 2 == 0)
+  .map(def(x) = [x, x * x, x * x * x])
+  .sortBy(def(x) = -x[2])
+  .forEach(::echo)
+
+
+println "\nReverse custom operator"
+data = [2, 4, 6, 5, 12, 34, 0, 18]
+rev = stream(data).custom(::reverse).toArray()
+println data
+println rev
+
+def reverse(container) {
+  size = length(container)
+  result = newarray(size)
+  for i : range(size) {
+    result[size - i - 1] = container[i]
+  }
+  return result
+}
\ No newline at end of file
diff --git a/examples/java/system_info.own b/examples/java/system_info.own
new file mode 100644
index 0000000..d8fc3a0
--- /dev/null
+++ b/examples/java/system_info.own
@@ -0,0 +1,5 @@
+use "java"
+System = newClass("java.lang.System")
+println "OS name: " + System.getProperty("os.name")
+println "OS version: " + System.getProperty("os.version")
+println "User home: " + System.getProperty("user.home")
\ No newline at end of file