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Joined: Apr 11, 2006
Posts: 19
I have downloaded source code from the internet and i have the .java files and the jar files. Im using Blue J and when i try copying the .java files into Blue J and compiling it says im trying to change the package statement to a package that does not exist in this project. Where do i find the package, is it inside the jar files and what do i do with the package. Thanks.
Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 61426

Moving to the beginner forum.

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Campbell Ritchie

Joined: Oct 13, 2005
Posts: 39409
The simplest answer is not to use BlueJ.
It is not at all good at using packages.

  • Copying the files to BlueJ with the package statements (always at the beginning of the file) left out.
  • Copying and pasting the class files to a proper IDE (eg NetBeans, Eclipse), but you will have to set up packages with the same names as your package statements.
  • Using a text editor or JCreator, with the package statements left in.

  • You may need to compile the classes individually, using
    javac -d .
    then to run them use
    java packagename.ClassName
    for the class with the main method in.
    See whether any of those is helpful
    It is sorta covered in the JavaRanch Style Guide.
    subject: Packages