To append data to an existing file, use _____________ to construct a FileOutputStream for file out.dat.
A) new FileOutputStream("out.dat")
B) new FileOutputStream("out.dat", false)
C) new FileOutputStream("out.dat", true)
D) new FileOutputStream(true, "out.dat")

Question

Quizplus · Accepted Answer

The option "new FileOutputStream("out.dat", true)" will open the existing file out.dat in append mode, which means any data that is written to the output stream will be added to the end of the existing file without overwriting its content. The option "new FileOutputStream("out.dat")" will also open the file, but in this case, any new data will overwrite the existing content of the file. Option B is incorrect because it will truncate the file to zero bytes before writing new data, which is not the desired behavior for appending data to an existing file. Option D is also incorrect because the first parameter in the constructor must be the file name or file object, not a boolean value.

To Append Data to an Existing File, Use _____________ to Construct