Skip to content
Advertisement

Java: Why does my program receive java.io.FileNotFoundException error for creating an input file when it successfully creates an output file?

I created two files in this program: “OutputFile.txt” and “InputFile.txt”. When I run my code, it displays an error called “java.io.FileNotFoundException” but it created “OutputFile.txt” in my system but not “InputFile.txt” Why is that?

JavaScript

Advertisement

Answer

2 File objects are created: outFile and inFile, this will create text files in my system

The first part of this is correct; the second is not. Creation of a File object is not creation of a file; new File(...) just makes an object that stores a path, basically, and does not touch the disk in any way. Per docs, a File object is

An abstract representation of file and directory pathnames.

FileWriter and FileReader do touch the disk. FileWriter writes to a file, and will create one if it does not exist; FileReader does not write, it reads — and if the file does not exist, it complains.

User contributions licensed under: CC BY-SA
9 People found this is helpful
Advertisement