What is the classpath in Java?

I wrote a program that works on my laptop, but I really hope it works on the server I own Using netbean, I have cleaned up and built the project I copied the contents of the folder dist on my server, but I can't seem to use the command Java - jar nameoffile jar

I got the wrong Java lang.NoClassDefFoundError：org / ….

I've been doing some reading, and what I've collected is that I need to almost specify the location of the library I use They are located in a subfolder called lib

So what do I need to do to run my jar?

Solution

Try:

java -classpath "$CLASSPATH:nameOfFile.jar:lib/*" path.to.your.MainClass

This is done by setting the classpath to the value of $classpath plus nameoffile Jar, and all in lib / Jar file