Article View: borland.public.jbuilder.java.language
Article #17291Re: Modifying data in a text file
From: Steve Schafer (TeamB)
Date: Thu, 26 Nov 1998 00:00
Date: Thu, 26 Nov 1998 00:00
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On Wed, 25 Nov 1998 13:11:37 -0800, Michael Andres <andr0023@tc.umn.edu> wrote: > A presumably easy question. What is the best way to modify an >existing line of text in a file? I need to create a method to change a >users password. They file is as such: > >user1 passwd1 >user2 passwd2 > >How do I change, for example, user1's password to: > >user1 newpasswd > >leaving the rest of the file unchanged? Unless you can guarantee that the two passwords will be exactly the same length, you really have no choice but to completely read in the original file, and write out the new file the same way, modifying just the one record as you do so. -Steve
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f74b3,7ee9637438b194e8 X-Google-Attributes: gidf74b3,public From: pandeng@telepath.com (Steve Schafer (TeamB)) Subject: Re: Modifying data in a text file Date: 1998/11/26 Message-ID: <3688a2f2.147216797@90.0.0.40> X-Deja-AN: 415729373 Content-Transfer-Encoding: 7bit References: <365C7288.E1E3B20E@tc.umn.edu> Content-Type: text/plain; charset=us-ascii Organization: TeamB Mime-Version: 1.0 Reply-To: pandeng@telepath.com Newsgroups: borland.public.jbuilder.java.language