Save string to file

Paul Hudson twostraws May 28th All strings have a write to: method that lets you save the contents of the string to disk. You need to provide a filename to write to, plus two more parameters: whether the write should be atomic, and what string encoding to use.

The second parameter should nearly always be true because it avoids concurrency problems. But this is optional , but good practice if you handle large files, as logs. Note that out.

Dave Jarvis Artem Barger Artem Barger Wrapping a FileWriter in a BufferedWriter is superfluous when you're writing out the entire file in a single write call. It seems that. Swallowing exceptions like that is going to make life hard for you when exceptions really do occur. At the very least you should rethrow them: throw new RuntimeException e ; — Roger Keays. Ankur I couldn't disagree more. These libraries are there so we don't introduce subtle bugs in such a simple solution.

No, obviously not. I'm only disagreeing that your solution might not be the first thing I'd throw at someone who's a beginner Java programmer. You aren't suggesting that you've never written such a thing, are you? I have, yes, but that's before I found commons-io. Since finding that, I've never written that sort of thing by hand, even in a one-class project.

If I'd known about it from day one, I'd have used it from day one. Exactly, but you're an experienced developer. I'm not disagreeing with the proper use of libraries. I'm saying that people attempting a language for the first time should try to know it at its bottom, even if that means doing things that they'll discard later on when they're experienced and know better.

I implemented this without commons and got a less than obvious exception thrown. I then implemented this using commons and it told me exactly what was wrong. Moral of the story: why live in the dark ages if you don't have to? Show 3 more comments. The following example would create a non-existing file or append the string to an existing one: Files. Marcel Marcel 9 9 silver badges 11 11 bronze badges. This needs more upvotes. The answer gets buried in the amount of answers provided to this question, yet it is superior to many of them.

Adam Wagner That doesn't close the file in case of an exception. JanusTroelsen: If rejected, cite The try-with-resources Statement. Janus Troelsen Spina Spina 8, 7 7 gold badges 36 36 silver badges 36 36 bronze badges. If you're using Guava, there is also Charsets. The parent folder must exist. Example: destination. Modern Guava alternative to deprecated Files.

A word to the wise - this will create a new file if it isn't there, but will overwrite the characters of the existing file if it is. If the new data is smaller, that will mean you probably create a corrupted file. Ask me how I know! Ok, how do you know? Just use Files. Ronaldo on 24 Dec Vote 0. Commented: Walter Roberson on 3 Aug Accepted Answer: Image Analyst.

How can I write some strings in text file each strinng in one line? Accepted Answer. Image Analyst on 24 Dec Vote 5. Cancel Copy to Clipboard. Edited: Image Analyst on 27 Dec Try this:. Or, if your strings are in variables,.

Ronaldo on 27 Dec The last line must be changed to:. Image Analyst on 27 Dec Right Ronaldo - thanks for noticing and correcting. In this tutorial, we learned about how to write a string to a file and covered the below topics:. Entrepreneur, Founder, Author, Blogger, Trainer, and more.

Check out my profile. Here we will check Python write string to a file Python write string to a file with newline Python write string to a file overwrite Python write string to a file without newline Python write string to a file append Python write string to csv file Python write a single row to a csv file Python write to file for loop Python write binary string to a file Python write to file concatenate string Python write string to file as utf-8 Python write string to csv files without quotes Table of Contents show.

Python write a string to a file. Python write string to a file with newline. Python write a string to a file overwrite.