Java在资源文件夹中写入.txt文件

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?

Answer 1

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