629: Highlights

• If you want to tell Java that you intend to work with file input or file output streams, then include the following line in your program:

  import java.io.*; 
  

• If you want to write to an output file, then instantiate the following pattern:

  FileOutputStream stream variable 
   = new FileOutputStream(file specification); 
  PrintWriter printer variable 
   = new PrintWriter(stream variable); 
  

• If you want to write data to a PrintWriter instance, then instantiate one of the following patterns:

  print writer.print(information to be printed); 
  print writer.println(information to be printed); 
  

• If you have finished writing to a file stream via a print writer, then flush the print writer and close the file by instantiating the following patterns:

  print writer variable.flush(); 
  file stream variable.close();