Initial data commit

Task/Stack/Scala/stack-3.scala

@@ -0,0 +1,13 @@
+object StackTest extends App {
+
+  val stack = new Stack[String]
+
+  stack.push("Peter Pan")
+  stack.push("Suske & Wiske", "Alice in Wonderland")
+
+  assert(stack.peek == "Alice in Wonderland")
+  assert(stack.pop() == "Alice in Wonderland")
+  assert(stack.pop() == "Suske & Wiske")
+  assert(stack.pop() == "Peter Pan")
+  println("Completed without errors")
+}