doubt in package; compiling

[raja kanak]

I copied the code found in K & B below

package book;
import cert.*; // Import all classes in the cert package
class Goo {
public static void main(String[] args) {
Sludge o = new Sludge();
o.testIt();
}
}
Now look at the second file:
package cert;
public class Sludge {
public void testIt() { System.out.println("sludge"); }
}

I placed Goo.java in the folder c:\scjp\book & the Sludge.java in c:\scjp\cert

Even though i successfully compiled Sludge.java Im unable to compile Goo.java

The error was "package cert does not exist"

I think the trick is behind classpath, how to fix it?
thanks in advance.

[wise owen]

try this

    
c:\>javac -classpath scjp scjp\book\Goo.java
or
c:\scjp>javac book\Goo.java

[raja kanak]

thank you, wise owen

it compiles perfectly.

Now i try to run from the folder c:\scjp\book\
like c:\scjp\book\java Goo

but i got runtime exception as
Exception in thread main java.lang.NoClassDefFoundError: Goo (wrong name: book/Goo)

I just don't know what is going wrong!!!

[wise owen]

try this
c:\scjp\book>java -cp c:\scjp;. Goo

[raja kanak]

Originally posted by wise owen:
try this
c:\scjp\book>java -cp c:\scjp;. Goo

thanks for your efforts but SAME ERROR

[anvesh charuvaka]

go to directory scjp
and to execute the class type

Java book.Goo

[ This should work if your classpath is set to include the current directory which usually is ]

[raja kanak]

that is great. It is working. thanks a lot.