FileNotFoundException in Java

The FileNotFoundException in Java occurs when the code tries to access a file that does not exist in the specified location or the path to the file is incorrect.

This exception is most commonly encountered when working with file I/O operations.

For instance, if a program attempts to read from a file that has been moved or deleted, a FileNotFoundException will be thrown.

To fix this, verify the file’s existence at the given path and ensure that the program has the necessary permissions to access it.

You can handle this exception by using a try...catch block, which helps manage scenarios where the file might not be available.

To prevent errors related to incorrect paths, always use absolute paths or relative paths based on the directory structure, and validate the file’s existence before performing read or write operations.

It’s also essential to ensure that file names and extensions are correctly specified, as Java is case-sensitive and may not locate files if the casing does not match.

Testing your program with a variety of file paths and handling potential exceptions properly will improve its robustness when working with file systems.