Java write .txt file in resource folder

Question

I am trying to write a .txt file in a resource folder but it doesn't write anything. I am able to read the same .txt file by doing:

Scanner scanner = null;
InputStream IS = MyClass.class.getResourceAsStream("/File/My FileH");
scanner = new Scanner(IS);

But when it comes to write, I have tried doing:

PrintWriter writer =  new PrintWriter(
    new File(this.getClass().getResource("/File/My FileH").getFile()));
writer.println("hello");
writer.close();

Any suggestions on how to write in that folder?

Try `PrintWriter writer = new PrintWriter( new File(this.getClass().getResource("/File/My FileH").getPath()));` to get the writer. — Héctor, Mar 21 '16 at 11:48
Resources are not files, and their locations are folders in JAR files, not directories in the file system. You need to rethink your requirement. — user207421, Mar 21 '16 at 11:48
@EJP What would you suggest me to do this file writing then? — Luis Pascual, Mar 21 '16 at 11:53

score 21 · Accepted Answer · answered Mar 21 '16 at 11:55

21

You can't write something in to a resource, assume that you packed your resource as a jar. Jar is only read only. You can't update that. Either you can extract the jar and edit the contents.

You can try Preferences as an alternative

answered Mar 21 '16 at 11:55

Viswanath Lekshmanan

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Ok, thanks for your reply. I will try to find another way to do this. – Luis Pascual Mar 21 '16 at 12:03
We can create a folder in current directory for write and read access – Ram Aug 22 '19 at 10:06
1

@Ram Sure, we can write in any location in system with write access. But not inside a jar resource folder. – Viswanath Lekshmanan Aug 23 '19 at 08:19

Java write .txt file in resource folder

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