.jar files not working

Question

I have some code in Java that I'm trying to turn into an executable file, but no matter what I have researched, watched, or tried, nothing seems to get either the .jar file or the .exe file running. Does anyone know how to fix this?

Answer 1

i give up, try to ask a new question but mention that you're using eclipse

Answer 2

hello again, sorry for not replying.
as you said there the jar file also isnt running. have you set an entry point for the jar files ?

you can check by opening Manifest.mf in Meta-inf inside the jar. and look for Main-Class

Answer 3

Taste

Hi again. How do you do that?

Answer 4

use archiver program like, winrar or 7zip to open jar file. then extract that file

Answer 5

Taste

What do I do after that?

Also, when I double click MANIFEST.MF in WinRar, it says "How do you want to open this file?"

Answer 6

use notepad, its just a textfile.
just to chect that the main class for the jar is defined. its common that jar doesnt have an entry point.

Answer 7

Taste

The main class is MyClass, just like in the code itself

Answer 8

so its set right ?
then try to run the jar file from the command line/terminal.

java -jar jarfile.jar

Answer 9

Taste

I got an error that says "Unable to access jarfile NumGrow.jar"

NumGrow is the name I gave the file

Answer 10

it meant the jar corrupted or its not found.
are you sure you're running from same directory as the jar file ?

Answer 11

Taste

I ran it from Command Prompt, so going by your words, I assume I had to do it somewhere else?

Answer 12

navigate to the target directory inside the command prompt.

like this
cd project/java

Answer 13

Taste

I don't understand. Sorry.

Answer 14

from the folder use shift right click.
then choose open cmd.

from there a cmd will appear, then run the the jar file.

Answer 15

I did it with Windows PowerShell and it works there

Answer 16

it should be. just in case if its not
https://stackoverflow.com/questions/28691344/how-to-call-a-java-program-from-powershell

i'm not so familar with powershell

Answer 17

Taste

I think it works the same as cmd in this case

Answer 18

recompiling maybe ? its strange tbh,

Answer 19

I tried exporting the code from the Eclipse IDE as a executable JAR file multiple times and turned them into executable files, but none of them work

Answer 20

Taste

Alright. Sorry I was vague