Beyond big projects, doing smaller, focused exercises is super helpful. GeeksforGeeks has tons of these, covering everything ...

Also, ensure the file isn’t open in another application before running your Java program. If necessary, use FileChannel or java.nio package to handle files more robustly.

But, a lot of times, it doesn’t. Now, how to tell which process has a file open? If it is urgent, you need to identify the process locking a file and then end the process to modify the target file.