Reading random lines from a file in java

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Copyright by Javin Paul Connect and share knowledge within a single location that is structured and easy to search. Im trying to get my android application to read from a text file and randomly chose an entry and then display it, How do i go about doing this? I think i have to use the buffer reader or input stream commands, but i have no idea how to use these, i've tried googling but havent found much help.

As far as i know and with some help i have to read the text file, add it to a string? You are asking about 2 different operations here.

Don't cloud up the problem by muddling them together. You want to know how to:. Here's some quick code for reading from a text file. You'll need to modify it to split on line ends and obviously it'd be good to address the TODOs yet, but it should get you started. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. The nextLine methods returns the same String as readLine method. The Scanner class can also read a file form InputStream.

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Am I thinking in a right direction? Look into the RandomAccessFile class. The only downside being the file is a treated as a sequence of bytes rather than the conventional line oriented view which many are used to. This class is especially for example useful when you want to come up with your custom file format which would have a fixed header size.

Simple question now : Now I have made another program, which reads 85 random characters from file one by one and outputs them onto the screen. The thing is, that for some reason the output is produced on a number of lines, instead of just one. I dont know what causes it. The number of lines can vary, e.

Any suggestions, please? If there isnt a very simple solution, just say so, this is not crucial - my tutor only asks for random characters output :. I am not quite sure that I understand what you are trying to say here but if you are worried about the number of characters displayed per line on your console window, it depends on the properties of the console window OS specific and has got nothing to do with your program.

For e. I think, I got it while I was lying in the bed yesterday. If yes, is there an easy way to avoid reading it?