Q: compiling and running java code on cmd prompt with .jar files I have some code on a Windows Machine placed in the following directories.
src folder (parent folder) containing:
 1. subfolder1: 
     a.java
     b.java
     c.java
 3. subfolder2:
     d.java
     e.java
     f.java
 4. runfile.java

There is also a lib folder containing: 
 1. x.jar
 2. y.jar

This code was originally written on Eclipse and therefore compiling and run it was straightforward. Here I guess there are many things I need to consider.
Dependencies:


*

*runfile.java imports subfolder1.c

*a.java, b.java and c.java are all in the same package

*d.java, e.java and f.java are all in the same package and import
libraries from x.jar and y.jar in the lib folder.


How I am trying to compile:
javac -cp .:../lib/* runfile.java

I get: error: package subfolder1 does not exsit.
For some reason it won't notice the c.java file when compiling the runfile.java
If I get it to compile would running it be as simple as:
java runfile

or do the .jar files have to be mentioned somehow as well?

A: If your project gets more complex I'd recommend using a proper build tool like (in best-to-worst order) Gradle, Ant or Maven.
javac -sourcepath . -cp ../lib/* runfile.java

should work for compilation I think and yes, you need to set the classpath for runtime also like 
java -cp .;../lib/* runfile

