Check my Java application touchscreen

Job ID: 30776735

Budget: €8 – €30 EUR

Hello,
i have a small java application. There is a sign field where someone can sign. It is written in java and is java swing. On the computer with mouse everything works fine but on a touchscreen, the line disappears after we release the finger from the display. There is a mistake anywhere. I attached the java files already here. Maybe some will see the problem directly. In the file DrawSignature.java is anywhere the problem.

Thanks.

Mit freundlichen Grüßen,
Kevin Jedynak