406: Highlights

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

  #include 
  

• If you want to open an input file, then instantiate the following pattern:

  ifstream stream name (file specification); 
  

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

  ofstream stream name (file specification); 
  

• If you want to read data from an open input file, then substitute the stream name for cin in input statements.
• If you want to write data into an open output file, then substitute the stream name for cout in output statements.
• If you are finished with an input or output stream, then you should close it by instantiating the following pattern:

  stream name.close ( );