JavaFx application is not compiling when running it from the CMD

Question

I wrote a game built on JavaFX using Eclipse. When running the game from Eclipse, it runs perfectly. However, when I try and run it from the CMD, I get compile errors like:

Game.java:146: error: ';' expected
                close.setOnAction(e -> window.close());
                                     ^
Game.java:146: error: <identifier> expected
                close.setOnAction(e -> window.close());
                                                   ^
Game.java:146: error: ';' expected
                close.setOnAction(e -> window.close());
                                                     ^
Game.java:150: error: <identifier> expected
                StartLayout.setId("pane");

Could this be a problem with the JavaFX installation? ideas?

Sorry, I didn't understand what you mean. I'm trying to run javac *.java and it's like not recognizing JavaFX code — Robot0110
– Robot0110, Commented Jun 25, 2017 at 21:51
Lambda expressions (e -> window.close()) require java 8 (javac 1.8+ to compile). From your comment on the answer, it seems that you are using javac 1.7. — rodit
– rodit, Commented Jun 25, 2017 at 22:04
how do you think I can fix that? I already downloaded the latest version of JDK — Robot0110
– Robot0110, Commented Jun 25, 2017 at 22:05

fabian · Accepted Answer · 2017-06-26 15:16:54Z

3

What is your java version? If u wanna use lambda expression, then you need java 8. Open cmd and check ur java version. Write this on cmd line:

java -version

On Eclipse Windows - Preferences - Java - Installed Jre.

edited Jun 26, 2017 at 15:16

fabian

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answered Jun 25, 2017 at 21:57

Volkan Okçu

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3 Comments

Robot0110 Over a year ago

it gives me javac 1.7.0_67 but the main one is java version "1.8.0_131"

Robot0110 Over a year ago

Thank you! I solved the problem. I apparently once installed some Java packages from a coursera course on Data structures which had a previous version of javac. I edited the path and everything works out.

Volkan Okçu Over a year ago

Open cmd line. Copy this: rundll32 sysdm.cpl,EditEnvironmentVariables. Then envoriment variables will be open. Check JAVA_HOME and JRE_HOME variable path.

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