=====Exécuter un programme composé de fichiers ''.class''=====
<code bash>
java VisitorDemo
</code>
VisitorDemo est la classe contenant la méthode ''main''.

=====Exécuter un programme ''.jar''=====
<code bash>
java -jar VisitorDemo.jar
</code>

=====Erreurs=====
====Error occurred during initialization of VM; Could not reserve enough space for object heap====
[[https://stackoverflow.com/questions/9303889/error-occurred-during-initialization-of-vm-could-not-reserve-enough-space-for|java - “Error occurred during initialization of VM; Could not reserve enough space for object heap” using -Xmx3G - Stack Overflow]] {{ :prog:java:java:java_-_error_occurred_during_initialization_of_vm_could_not_reserve_enough_space_for_object_heap_using_-xmx3g_-_stack_overflow_2020-04-29_7_21_57_pm_.html |Archive du 16/02/2012 le 29/04/2020}}

Cette erreur apparait depuis jre131 et pas avec jre121 en cas d'utilisation ''-Xmx…''