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Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？) [Re:wukw]

why

問題兒童

总版主

发贴: 4629
积分: 388

于 2005-12-30 22:54

Java doesn't have such methods, nor do most, if not all, programming languages, provide such Random Access File "delete" functionality.
Correct me if this's wrong.

Think about or check this: does the other APIs in java.io provide such a delete feature?
Nope.
No matter you 受不了 or not. Smile

具体的说，是循环拷贝这个文件的内容（跳过这一行）。但是这种方法不好，比如文件很大呢？

Of coruse, this is not "efficient" but what else can one do?
One could only minimize the number of writes, perhaps by making use of buffer or cache, or certain complex structures (formats) if it is not plain text file.

Do a Google search for ways to do this "delete".

BTW, I asked you
為甚麼要用RandomAccessFile呢？
Did you think about it?

why edited on 2005-12-31 03:37

话题树型展开

人气	标题	作者	字数	发贴时间
10233	问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	wukw	123	2005-12-30 20:18
7934	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	why	97	2005-12-30 20:48
8247	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	wukw	49	2005-12-30 21:39
7905	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	why	116	2005-12-30 21:55
8046	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	wukw	121	2005-12-30 22:37
7994	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	why	701	2005-12-30 22:54
8151	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	wukw	263	2005-12-31 03:12
7842	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	why	291	2005-12-31 03:51
7800	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	空心菜	20	2006-01-05 22:34
7931	Re:问个弱智问题，java对文本文件的操作(RandomAccessFile没有delete()函数？)	why	80	2006-01-05 23:19

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