You can print a "Hello World" command in Codesters. See the steps below to accomplish this. Please let me know if you have any questions.
Select the Logic tab and then Console. You will then see "print" statements below that you can use.
In order to see the print output, click the "P" button in the Action Bar in order to display the print console. A screen will then cover up the stage.
Type what you want in the editor and click run.