Re: Help needed with importing

As always with a new system, I seem to have more trouble with the
needed infrastructure rather than the expression of my desires in
code. With Java, I am unable to get one class to use another.

I have this simple class, compiled and ready in a .class file:

$ cat CensusData.java
package cg;

public class CensusData
{
     public int population;
     public int houses;
     public int returns;
     public int agi_avg;
     public int refunds;
     public int refund_avg;
}

and a desirous user of it (with irrelevancies elided)
$ head CountyAgi.java

import cg.CensusData;

public class CountyAgi extends Configured implements Tool
{
   public static class Map
    extends Mapper<LongWritable, Text, Text, CensusData>
   {
     private CensusData cd = new cg.CensusData();

But compiling this claims that
     package cg does not exist
and
     symbol CensusData does not exist

Everything being in the same directory, I thought the package was not

even necessary and originally did not have it. I added it just to try
to get it to compile, with no good effect. The current configuration
seems to match what the tutorial at oracle.com shows. I think perhaps
my problem is in the compiler invocation rather than the program
structure.

javac -classpath /usr/lib/hadoop/hadoop-core-0.20.2+320.jar:/usr/lib/
hadoop/hadoop-mapred-0.20.2+320.jar:/usr/lib/hadoop/hadoop-
hdfd-0.20.2+320.jar -d . CountyAgi.java

I've tried adding CensusData.class to the command line, and putting

CensusData in a jar and adding that, but nothing works.

Can you help a neophyte?