Java – why dir Mkdir() in file No exception handling is required in the case of createnewfile()?

This is a snippet of code

File dir = new File("dir");
        dir.mkdir();

        File file = new File(dir,"file.txt");

        try {
            file.createNewFile();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

I want to know why in file A dir. Is required when createnewfile() No exception handling is required for mkdir()

When creating the directory, are we quite sure that "nothing can go wrong"? If so, why?

Solution

Good question

There is really no good reason for this different behavior

Createnewfile() was added to JDK in version 1.2 and mkdir() was added in 1.0 This is probably the reason why the API designer decided to throw IOException using the update function