Test java

This app has questions about Java (langaje programming)
Topis POO, sintaxys, threads, POJOs

The images that use are CC0 Public Domain from:

https://pixabay.com/en/question-mark-question-response-1020004/
http://www.webdesignhot.com/free-icon/cool-smilies-vector-icon-set/
https://pixabay.com/en/laptop-learn-school-computer-1019782/
https://pixabay.com/en/books-stack-learn-study-library-1015595/
https://pixabay.com/en/share-connect-icon-880816/
https://pixabay.com/en/trash-can-wastebasket-receptical-23640/
https://pixabay.com/en/programming-languages-icon-898961/
https://pixabay.com/en/parts-networking-social-media-1086737/
https://pixabay.com/en/chart-graph-graphic-statistics-35773/
https://pixabay.com/en/test-clock-deadline-time-period-361512/
https://pixabay.com/en/check-list-list-exam-test-36969/
https://pixabay.com/en/sign-post-board-exit-direction-575715/
https://pixabay.com/en/gears-hook-consent-confirmation-91457/
https://pixabay.com/en/read-info-information-98612/
https://pixabay.com/en/certificate-border-card-frame-146280/
https://pixabay.com/en/statistics-curve-course-business-754120/
https://pixabay.com/en/statistics-statistics-lie-714964/
https://pixabay.com/en/statistics-curve-course-business-754120/
https://pixabay.com/en/books-education-school-literature-441866/
https://pixabay.com/en/start-stairs-start-up-success-1063441/