1what is file?
2what are different types of file?
3what is java.io?
4what is the difference between file and database?
5.how to read from a file?what are different steps to read a file?
6.what are the classes used to read a file?
7.how to write tofile?what are different steps to write in file?
8.what are the exceptions that will occur while doing file handling?
急求
1,文件2，文件类型。如TXT等3，java.io为java基础类库中很重要的包，流的相关类和流的处理都在这个包里面4，文件和数据库，其实数据库可以理解成文件系统中的一部分，因为数据库也是通过文件形式保存的，只不过它是有一套保存数据的规则和管理功能。5，File file = new File("文件路径"); StringBuffer contents = new StringBuffer(); BufferedReader reader = null;
reader = new BufferedReader(new FileReader(file)); String text = null;
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