Writing to a file

• To open a file for output, a FileOutputStream object is used.

• Two common constructors are:

• FileOutputStream(String filename) throws FileNotFoundException

• FileOutputStream(String filename, boolean include) throws FileNotFoundException

• If the file cannot be created, a FileNotFoundException will be thrown.

• In the first constructor, an existing file with the same name is destroyed on opening.

• In the second constructor, if include is true, the data is added to the end of the file; otherwise, the file is overwritten.

• To write to a file, the write(int valbyte) method is used, which writes only the 8 low-order bits of the integer.

• If an error occurs during recording, an IOException will be thrown.

• After use, the file must be closed with the close() method, which frees up system resources and ensures that the data in the buffer is written.

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