classpath help

Consider the following directory structure:

dir1

|

dir2

|

xcom

|--A.class

|--B.java

two files :

package xcom;

public class A{}

package xcom;

public class B extends A{}

the answer given here(Kathy) is

javac -cp . xcom/B.java when we are indir2 directory.

My question is:

how will javac find A.class since its not there indir2?

[447 byte] By [sjosh_theonea] at [2007-11-27 11:38:02]