Data update

Task/Stack/Delphi/stack.pas

@@ -0,0 +1,24 @@
+program Stack;
+
+{$APPTYPE CONSOLE}
+
+uses Generics.Collections;
+
+var
+  lStack: TStack<Integer>;
+begin
+  lStack := TStack<Integer>.Create;
+  try
+    lStack.Push(1);
+    lStack.Push(2);
+    lStack.Push(3);
+    Assert(lStack.Peek = 3); // 3 should be at the top of the stack
+
+    Writeln(lStack.Pop); // 3
+    Writeln(lStack.Pop); // 2
+    Writeln(lStack.Pop); // 1
+    Assert(lStack.Count = 0); // should be empty
+  finally
+    lStack.Free;
+  end;
+end.