How to delete java files

The first step is to find the path of the files and directories to be deleted on our computer. What we want to delete here are all the files and folders under the test2 folder, as well as its own files. folder, as shown in the figure below:

The second step, after opening the eclipse software, pass File folder = new File("F:/test/test2" in the main method ); Get the file, and then call the method deleteFolder(folder) to delete files and directories, as shown in the following figure:

The third step is to get the path through folder.listFiles() Name array, then traverse the array, use the isDirectory() method to determine whether it is a folder or a file, continue to call the deleteFolder(f) method for the folder, if not, delete it through the delete method, as shown in the following figure:

The fourth step is to run the project. You can see that all the files under the test2 folder have been deleted, but the folder has not been deleted, as shown in the following figure:

The fifth step, we directly delete the folder directory through the folder.delete(); code, as shown below:

The sixth step, run the project , you can see that all files and directories in test2 have been deleted, including the test2 folder itself, as shown in the following figure:

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