Java Delete a Folder: One of the easiest ways to delete a folder is to apply a smart logic. When you have got it into an idea, you will have to immediately recall that it is 'repeat' what can do the things go. Well, if i want to delete a folder, then all i need to do is to delete all the files in it including the folders and finally the folder itself. Here i have written a simple method and also explained it how-to delete a folder in Java.