Java command Line compilation with multiple sources

Question

I know the title doesn't fully describe my problem, but I'm not sure how else to ask this. I know there's tools to do this, but I want to understand how the compiler works in java, I wrote some very basic code and I'm able to compile them without any problems using

javac -sourcepath java -d ../target/dir1 java/shapes/mainclass/TestRun.java

in the command line, but that only works when the packages are in the same source directory as seen in the picture below

I want to be able to compile from the command line where my package are in other source directories as well, please see the picture below

Does anyone know how I can do this ? I tried modifying the command line to

javac -sourcepath java -d ../target/ java/dir1/shapes/mainclass/TestRun.java but this results in the following error

java\dir1\shapes\mainclass\TestRun.java:3: error: package shapes.classes does not exist
import shapes.classes.*;
^
java\dir1\shapes\mainclass\TestRun.java:8: error: cannot find symbol
                ShapeMain circle = new Circle(5);
                ^
  symbol:   class ShapeMain
  location: class TestRun
java\dir1\shapes\mainclass\TestRun.java:8: error: cannot find symbol
                ShapeMain circle = new Circle(5);
                                       ^
  symbol:   class Circle
  location: class TestRun
java\dir1\shapes\mainclass\TestRun.java:9: error: cannot find symbol
                ShapeMain rectangle = new Rectangle(8, 9.9);
                ^
  symbol:   class ShapeMain
  location: class TestRun
java\dir1\shapes\mainclass\TestRun.java:9: error: cannot find symbol
                ShapeMain rectangle = new Rectangle(8, 9.9);
                                          ^
  symbol:   class Rectangle
  location: class TestRun
java\dir1\shapes\mainclass\TestRun.java:10: error: cannot find symbol
                ShapeMain triangle = new Triangle(10, 4.5);
                ^
  symbol:   class ShapeMain
  location: class TestRun
java\dir1\shapes\mainclass\TestRun.java:10: error: cannot find symbol
                ShapeMain triangle = new Triangle(10, 4.5);
                                         ^
  symbol:   class Triangle
  location: class TestRun
7 errors

Any help will be appreciated

An alternative would be to define two different projects.

Luiggi Mendoza
– Luiggi Mendoza

2018-01-15 13:59:28 +00:00
Commented Jan 15, 2018 at 13:59 — Luiggi Mendoza
– Luiggi Mendoza, Commented Jan 15, 2018 at 13:59

Christiaan · Accepted Answer · 2018-01-16 05:49:40Z

1

I managed to find a solution, you should use javac -sourcepath java/dir1;java/dir2 -d ../target/dir1 java/dir1/shapes/mainclass/TestRun.java

notice that on the -sourcepath its not -sourcepath java but its -sourcepath java/dir1;java/dir2, its specifying where the .java classes are in each directory

answered Jan 16, 2018 at 5:49

Christiaan

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Comments

Yogesh · Accepted Answer · 2018-01-15 14:11:27Z

0

Use -d command line parameter with javac to tell it what directory you'd like to store the compiled class files in. After complication run the program, using java -cp

javac -d some/directory javaprogram.java

java - cp some/directory javaprogram

answered Jan 15, 2018 at 14:11

Yogesh

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user207421 · Accepted Answer · 2018-01-15 15:05:20Z

0

You should be in thesrc/java directory, and adjust your commands accordingly.

answered Jan 15, 2018 at 15:05

user207421

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2 Comments

Christiaan Over a year ago

I was able to achieve my goal from the src directory

user207421 Over a year ago

No doubt, but this is the easy way to do it.

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