如何从Linux中的文件夹导入Java文件？

Question

In my linux, I have my java files that I coped from my windows eclipse project, and now I want to compile it in linux.

The folder structure is

PlutoMake.java
java-json.jar
Filter\ColorFilter.java
Filter\Darken.java
Filter\NoFilter.java
Filter\VividLight.java

The PlutoMake file has these imports and some others too like for json

import Filter.ColorFilter;
import Filter.Darken;
import Filter.NoFilter;
import Filter.VividLight;

But when I try to compile plutomake, it says

PlutoMake.java:12: package Filter does not exist
import Filter.ColorFilter;

I already use this to compile it:

javac -cp "java-json.jar" PlutoMake.java

and similarly for other ones too.

Does anyone know how to import it?

Thanks

Answer 1

You are getting package Filter does not exist error because the Filter.* classes are not present in the class path.

First compile the java files in side the folder Filter then compile the PlutoMake.java using javac -cp "java-json.jar;." PlutoMake.java javac -cp "java-json.jar;." PlutoMake.java

I'll advice to use some build tool like Maven or Gradle or Ant

Answer 2

If i understand the question correctly. In eclipse just go to fil > Import > Existing Projects into Workspace Select your project and import all your files. Then hit finish. Are they in the right subdirectories?

If you put /usr/share/'classpath', files defined with package Filter should be in /usr/share/Classes/Filter/ try setting java -classpath