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Message:

packages and files

Posted by Joan Friedman on May 25, 2000 at 9:14 AM

Your .java and .class files need to be in a directory structure that matches the packages they are in.
If 'derived.java' and 'demo.java' are in the default package (no package specified), and they are in
c:\test, then 'base.java' in package 'MyPack' has to be in c:\test\MyPack. The class files can be in
the same directories as the source files, or in another - for example, you could put the class
files in c:\test\classes. If you do, then 'base.class' will be
in c:\test\classes\MyPack

> Hi,
> I have small program which has a base class (class name: "base"), with a defualt constructor wich just prints base's member variable. The scope of this class and the constructor is "Public". I create this in a package "MyPack" and save in a file called base.java.
> I have a different file called derived.java which imports the package "MyPack" and it derives from class base. In this class i just print the value of base class value.
> I have a third file called "demo.java" which has the main method creating an object of the derived class.
> Now i store these 3 files in a directory c:\test\*.java
> I want to compile these 3 files and put the resulting .class files in the directory c:\test\MyPack.
> The problem i'm facing is : the first file base.java gets compiled and puts the base.class file in
> c:\test\MyPack\base.class. Now while compiling derived.java, it gives a error that the "base class is not found".

> i compiled like :c:\test\> javac -d c:\test\MyPack\ derived.java

> I tried with -classpath option also. It's still giving the same error. How to compile this and what could be reason for the error?