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POHelp with packages in java - import does not work
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copied!<p>I'm a C++ developer - not a java developer, but have to get this code working...</p> <p>I have 2 public classes that will be used by another product. I used the package directive in each of the java files. </p> <pre><code>package com.company.thing; class MyClass ... </code></pre> <p>When I try to compile a test app that uses that I add </p> <pre><code>import com.company.thing.*; </code></pre> <p>The javac compiler fails with errors about com.company does not exist. (even if I compile it in the same directory as the class files I just made a package of)</p> <p>I am sure I am doing something bone-headed and silly.</p> <p>I've read the <a href="http://java.sun.com/docs/books/tutorial/java/package/usepkgs.html" rel="noreferrer">http://java.sun.com/docs/books/tutorial/java/package/usepkgs.html</a> pages and tried to set up a directory structure like /com/company/thing etc, but either I have totally screwed it all up or am missing something else.</p> <p>EDIT thanks for the suggestions - I had tried the classpath previously. It does not help.</p> <p>I tried compiling </p> <pre><code>javac -classpath <parent> client.java </code></pre> <p>and the result is:</p> <pre><code>package com.company does not exist </code></pre> <p>I have the code I want to import (the two java files) in \com\company\product. I compile those fine. (they contain MyClass) I even made a jar file for them. I copied the jar file up to the parent directory.</p> <p>I then did (in the parent directory with the client java file) </p> <pre><code>javac -cp <jarfile> *.java </code></pre> <p>the result is:</p> <pre><code>cannot access MyClass bad class file: MyClass.class(:MyClass.class) class file contains wrong class: com.company.product.MyClass Please remove or make sure it appears in the correct subdirectory of the classpath. </code></pre> <p>EDIT</p> <p>I got the client code to compile and run if I used the fully qualified name for MyClass and compiled it in the parent directory. I am totally confused now. </p> <p>compiled with no classpath set - just </p> <pre><code>javac *.java </code></pre> <p>in the parent directory - and it worked fine.</p> <p>I can get a test app to compile, but that is not going to cut it when i have to integrate it into the production code. Still looking for help.</p> <p>EDIT:</p> <p>Finally - not sure why it didn't work before - but I cleaned up all the files all over the directory structure and now it works. </p> <p>Thanks</p>

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