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Semelhante a File I/O in Java - Read, Write, Create and Delete Files
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File I/O in Java - Read, Write, Create and Delete Files
Notas do Editor
- billy
- Why should we check for the success of failure of file deletion? (Or for file creation, for that matter?) Because we’re interacting with something (the OS) that our program doesn’t control and that can take action on it’s own, independently of how our program behaves. We need to make sure that something that the independent behaviour of the OS didn’t interfere with our file creation or deletion.
- In this diagram, a file we would like to read is represented by the data source. We use a stream to connect it to our program.
- We have two choices about how to handle this exception. 1.) We can add the FileNotFoundException to the throws clause. (Use commas to separate multiple clauses 2.) We can add a separate catch block
- Overwrite means that it will create a new empty file of the same name. In other words the contents of the original file will be lost.