How to switch to new scenes without an Mouse/Drag/etc. event?

In my Code I can switch to another scene using buttons like this: public void handleButtonClick(MouseEvent event) throws IOException { Parent menu_parent = FXMLLoader.load(getClass().getResource(“/FXML/FXMLmm2.fxml”)); Scene SceneMenu = new Scene(menu_parent); Stage stage = (Stage) ((Node) event.getSource()).getScene().getWindow(); stage.setScene(SceneMenu); stage.show(); } Now I have a method in the controller class wich should open a scene without an event:…

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How spark RangeBetween works with Descending Order?

I thought rangeBetween(start, end) looks into values of the range(cur_value – start, cur_value + end). https://spark.apache.org/docs/2.3.0/api/java/org/apache/spark/sql/expressions/WindowSpec.html But, I saw an example where they used descending orderBy() on timestamp, and then used (unboundedPreceeding, 0) with rangeBetween. Which led me to explore the following example: dd = spark.createDataFrame( [(1, “a”), (3, “a”), (3, “a”), (1, “b”), (2,…

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Ansible gives me an error during execution of some playbooks

I use Ansible 2.9.2 on Ubuntu Server 18.04 + Python 3.6.9. Here is a simple Ansible project: https://github.com/770715/ansible.git If I run: ansible-playbook -i aws_ec2.yml add-ssh-keys.yml it works just fine but when I try to run: ansible-playbook -i aws_ec2.yml playbook.yml I get an error: [email protected]:~/code/build/ansible$ ansible-playbook -i aws_ec2.yml playbook.yml /usr/lib/python3/dist-packages/requests/__init__.py:80: RequestsDependencyWarning: urllib3 (1.25.7) or chardet (3.0.4)…

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