16. RandomAccessFile implements DataOutput and DataInput interfaces

• Class java.io.RandomAccessFile implements two interfaces:

  • DataInput

  • DataOutput

• Methods of the RandomAccessFile class for input and output

  
      Method          Throws
      --------------- -------------
      seek(long)      IOException
      length()        IOException
      setLength(long) IOException
      close()         IOException
  
  

• With setLength() the length of the file can be changed, resulting in the content to be truncated or exatended.