Turn .java in .jar and implement the jar in the project

Asked Jun 21 '21 at 16:59

Active Jun 21 '21 at 19:55

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I have a java project in eclipse and I have a .java file with some code for handling user password, decryption, encryption etc. and I want to turn the .java file into a .jar file and add the jar to the project, so that I can acces it, but not change it or look at the code.

I turned it into a .jar with

javac -d ./build *.java

jar cvf YourJar.jar *

and added the jar to the project but when I call the classname it doesn't give me an option to import it.

CryptoHandler.getSql() // <- original class name

// => err: CryptoHandler cannot be resolved

asked Jun 21 '21 at 16:59

luis

How did you add the jar to the project? – Gautham M Jun 21 '21 at 17:13
Does this answer your question? [How to import a jar in Eclipse](https://stackoverflow.com/questions/3280353/how-to-import-a-jar-in-eclipse) – Gautham M Jun 21 '21 at 17:15
I adde it via the java build path -> libraries -> add external jar – luis Jun 21 '21 at 17:27
@GauthamM nope sadly not – luis Jun 21 '21 at 17:28
I hope you have gone through multiple answers on that question and not just the accepted answer. – Gautham M Jun 22 '21 at 07:29

Turn .java in .jar and implement the jar in the project

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