Problem puting class into a package

Question

I have the following two *.java files:
Chess.java
package chessgame;
public abstract class Chess{
Rook.java
package chessgame;
class Rook{
Here's what I got from jdk:
G:\java\ChessGame>javac Chess.java
G:\java\ChessGame>javac Rook.java
Rook.java:3: cannot resolve symbol
symbol : class Chess
location: class chinesechess.Rook
public class Rook extends Chess{.......
What may be wrong? I do put the "package chessgame;" on the beginning of each *.java fiels.

Answer 1

G:\java\ChessGame>javac Chess.java
G:\java\ChessGame>javac Rook.java
Rook.java:3: cannot resolve symbol
symbol : class Chess
location: class chinesechess.Rook
public class Rook extends Chess{.......
Actually, to do it right you should be compiling with
G:\java\>javac chessgame/Chess.java
and
G:\java\>javac chessgame/Rook.java
(or alternatively G:\java\chessgame>javac -d . *.java)
This is explained with more detail in the document [url http://java.sun.com/j2se/1.4/docs/tooldocs/windows/classpath.html]Setting The Classpath.
Also, your package is called "chessgame" but the directory name seems to be "ChessGame", that might cause problems because java is case sensitive...
Your classpath should be fine if you haven't touched it, but if you are in doubt use "-classpath ." in the above commands.