37: Highlights

• When you work with C++, as with most programming languages, you write source code, the C++ compiler translates source code into object code, the C++ linker then links object code into executable code, and your computer runs that executable code.
• C++ functions contain sequences of computation-specifying statements.
• All C++ programs contain a function named main. When you run a C++ program, you initiate the computations specified in that main function.
• Many statements involve built-in operators, such as the multiplication operator, *, and the output operator, <<. Operators do their work on operands.
• To test simple programs, you often use data that you supply when you write the program. Such data are said to be wired in.
• If you plan to use the output operator, then you must inform the C++ compiler of your intention by including the following line near the beginning of your program:

  #include  
  

• If you wish to display characters, then use an output statement:

  cout << expression whose value is to be displayed; 
  

• If you want to terminate a line, then include an output statement with endl:

  cout << endl;