Java native, JNI / JNA expert required

Job Description:

We require a Java expert on Java Native API and JNI under MS windows and to identify window handles and window activities

We search for the right fit in the team for regular work. This is a reliable delivery with a reliable communication. To identify if you fit from the technical perspective here a small test task.

As a quick test task here the requirements

- NO/NONE UI required, only a ongoing desktop application.

- NO/NONE persistence framework required (spring or something)

implement a window detection per human visible physical screen/display

- the visible windows with the visible coordinates per screen (and thus visible percentage)

- the z order of the visible windows

- if the window has currently the focus or not

- the title + executable per windows

- provide the result as a class with the details and a List containing all windows-data

- provide also if user uses virtual desktops

you deliver the code, which basically has

- a main() + your required classes + methods

- sysout the results to the console


implement the data class and the list of all open windows per physical screen + focus/active flag


implement the visibility section + z-order parts of all visible windows


implement the rest of the requirements (e.g. title + executable)


- in our git (will be shared after award)

- as java source delivery

- maven (dependencies are all managed there)

- required libs need prior confirm to be accepted

- JDK17 compatible

your bid?

you provide estimate as billable hours + delivery date per milestone, we may discuss about requirements

we confirm, you implement


we do not disclose, place your best bid to get considered

Compétences : Java, Développement de logiciel, Object Oriented Programming (OOP), PHP

Concernant le client :
( 45 commentaires ) Stuttgart, Germany

Nº du projet : #35055062

37 freelances font une offre moyenne de 16 $/heure pour ce travail


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$30 USD / heure
(95 Commentaires)

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$20 USD / heure
(63 Commentaires)

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$20 USD / heure
(79 Commentaires)

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$16 USD / heure
(49 Commentaires)

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$25 USD / heure
(41 Commentaires)

Hello, I Develop PHP Websites from scratch or Customize the existing one or Fix errors for your current website in Laravel, CodeIgniter, WordPress, Ecommerce, Core PHP. What Do I Offer? PHP Scripting Front End De Plus

$18 USD / heure
(26 Commentaires)

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(7 Commentaires)

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$12 USD / heure
(26 Commentaires)

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(16 Commentaires)

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$20 USD / heure
(23 Commentaires)

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$11 USD / heure
(7 Commentaires)

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(6 Commentaires)

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(1 Évaluation)

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$11 USD / heure
(1 Évaluation)

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(1 Évaluation)