Groovy write string to file

I created a small function that simply writes text to a file, but I am having issues making it write each piece of information to a new line. Can someone explain why it puts everything on the same line? As you can see, the text is all bunched together instead of separated on a new line per text.

I assume it has something to do with how I am adding it into my list? You can always get the correct new line character through System. I came across this question and inspired by other contributors. I need to append some content to a file once per line. Here is what I did. Might be cleaner to use PrintWriter and its method println. Just make sure you close the writer when you're done.

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Asked 11 years, 1 month ago. Active 2 years, 3 months ago. Viewed k times. Improve this question. StartingGroovy StartingGroovy 2, 9 9 gold badges 44 44 silver badges 66 66 bronze badges. Add a comment. It then takes the function of eachLine, puts it to a variable called line and prints it accordingly.

If you want to get the entire contents of the file as a string, you can use the text property of the file class. The following example shows how this can be done.

If you want to write to files, you need to use the writer class to output text to a file. If you want to get the size of the file one can use the length property of the file class to get the size of the file.

If you want to see if a path is a file or a directory, one can use the isFile and isDirectory option of the File class. If you want to create a new directory you can use the mkdir function of the File class. If you want to delete a file you can use the delete function of the File class. Groovy supports try Groovy adopted the def keyword and inference of type from the right-hand side of a statement long before Java came up with the var keyword, and Groovy allows it everywhere.

Aside from using def , though, the code that does the main work looks quite similar to the Java version. Oh yeah, except that Groovy also has this nice metaprogramming ability built in, which among other things, lets you write println instead of System. This similarity is way more than skin deep and allows Java programmers to get traction with Groovy very quickly.

And just like Python programmers are always looking for the pythonic way to do stuff, there is Groovy that looks like Java, and then there is… groovier Groovy. This solves the same problem but uses Groovy's with method to make the code more DRY "don't repeat yourself" and to automate closing the input file:.

What's between. Notice that you don't need to write myScanner. Also the with gets rid of the need to code myScanner. Note the "file not found" exception; this is because there isn't a file called example. Note also that the files are from things like java. Remember that true after the file name means "append to the file," so you can run this a few times:. Groovy isn't always shorter! The Apache Groovy site has a lot of great documentation.

Another great Groovy resource is Mr. And a really great reason to learn Groovy is to learn Grails , which is a wonderfully productive full-stack web framework built on top of excellent components like Hibernate, Spring Boot, and Micronaut. Read and write files with Groovy Opensource.

Learn how the Groovy programming language handles reading from and writing to files. Image by :. WOCinTech Chat.