It is hereby certified that Eirinaios Antonios Vavadakis has successfully attended and completed the course: CS2.1: Introduction to programming with the Java language

which is offered by Mathesis MOOCs, developed in Crete University Press of the Foundation for Research and Technology - Hellas, with the lecturer Mr John Kostaras, member of the Apache-Netbeans design team.

The duration of the course was six weeks —13/3/2023 until 23/4/2023— with an estimated study time of 60 hours needed to complete the course. This course is offered via the platform OpenEdX/gr of Mathesis in compliance with all established technical and educational specifications. The assessment procedure is based on the honour code by which the participants commit to abide. The responsibility for the content of the course and its assessment lies exclusively with the lecturer. The final assignment was evaluated by the lecturer and his assistants.