How to build java classpath on Mac

Thank you.

Thanks. Maybe I didn't make myself clear.
I tried to compile java file in terminal window, it showed me error message, but when I tried to compile on Window, it works.
So I assume that I didn't set CLASSPATH correctly.
Today, my java files compiles fine. It's very strange.
Last semester I encountered that when I use eclipse to compile my java files, it showed me errors too, but the java files compile fine on Windows. This kind of thing happened from time to time.
I don't know did anyone else have this kind of problems too?

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     * </ol>
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                String url      = ((args.length > 2) ? args[2] : DEFAULT_URL);
                String username = ((args.length > 3) ? args[3] : DEFAULT_USERNAME);
                String password = ((args.length > 4) ? args[4] : DEFAULT_PASSWORD);
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                List rows               = new ArrayList();
                while (rs.next())
                    Map thisRow = new LinkedHashMap();
                    for (int i = 1; i <= numColumns; ++i)
                        String columnName   = meta.getColumnName(i);
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                        thisRow.put(columnName, value);
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                returnValue = rows;
        else
            int updateCount = statement.getUpdateCount();
            returnValue     = new Integer(updateCount);
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            close(rs);
            close(statement);
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     * @param connection to close
    public static final void close(Connection connection)
        try
            if (connection != null)
                connection.close();
                connection = null;
        catch (SQLException e)
            e.printStackTrace();
     * Close a statement
     * @param statement to close
    public static final void close(Statement statement)
        try
            if (statement != null)
                statement.close();
                statement = null;
        catch (SQLException e)
            e.printStackTrace();
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    public static final void close(ResultSet rs)
        try
            if (rs != null)
                rs.close();
                rs = null;
        catch (SQLException e)
            e.printStackTrace();
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     * @param connection to close
     * @param statement to close
    public static final void close(Connection connection, Statement statement)
        close(statement);
        close(connection);
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     * @param statement to close
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                                   Statement statement,
                                   ResultSet rs)
        close(rs);
        close(statement);
        close(connection);
}%

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