File truncate operation in Java

Question

What is the best-practice way to truncate a file in Java? For example this dummy function, just as an example to clarify the intent:

void readAndTruncate(Fil         


        

Answer 1

Use FileChannel.truncate:

try (FileChannel outChan = new FileOutputStream(f, true).getChannel()) {
  outChan.truncate(newSize);
}