java - Executable jar file became jar file only? -


i made project , build executable jar file. problem executable jar file in computer when transfer computer became jar file only. problem here? i'm using netbeans 8.0.2

maybe don't have java installed on second computer, or installation not default, "jar" extension not registered?

try in console:

 java -version   #if have java, can start jar command line:   java -jar youjarname.jar

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