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Groups > it.comp.java > #9298

newbie ... hello world non funziona

Newsgroups it.comp.java
Date 2019-06-08 10:34 -0700
Message-ID <f691c421-fad2-4a8f-bcd3-b363a144eed3@googlegroups.com> (permalink)
Subject newbie ... hello world non funziona
From filiberto.ricci@gmail.com

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ciao

nuovissimo alla programmazione ed a java... sto seguendo un tutorial online...
e mi sono già perso nelle installazioni

c:\Users\filo\Documents\xxxjava>java -version
java version "1.8.0_211"
Java(TM) SE Runtime Environment (build 1.8.0_211-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode)


c:\Users\filo\Documents\xxxjava>javac -version
javac 12.0.1


quando eseguo riscontro questo errore...
c:\Users\filo\Documents\xxxjava>java pippo
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: pippo has been compiled by a more recent version of the Java Runtime (class file version 56.0), this version of the Java Runtime only recognizes class file versions up to 52.0


non riesco a capire qual'è il problema... ho installato l'ultima JDK e l'ultima SE...

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newbie ... hello world non funziona filiberto.ricci@gmail.com - 2019-06-08 10:34 -0700
  Re: newbie ... hello world non funziona "Dr.UgoGagliardelli" <do.not.spam@me.please> - 2019-06-09 06:14 +0200
    Re: newbie ... hello world non funziona filiberto.ricci@gmail.com - 2019-06-20 01:30 -0700

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