Writera类 abstract void write(int b)throws IOException void write(char [b)throws IOException void close()throws IOException void flushO throws IOException ©2006计算机系杨厚群 All rights lefts reserved ©2006 计算机系 杨厚群 All rights & lefts reserved. Writer类 abstract void write(int b) throws IOException void write(char[] b) throws IOException void close() throws IOException void flush() throws IOException