Methods are function calls that apply only to an object. Their call is similar to other function calls, except that the function name is preceded by the object name with a dot.
A good example is the get function of the input streams, such as cin. Executing the code:
char ch;
cin >> ch;
will cause all leading blanks and whitespace to be skipped. In order to receive blanks use:
ch = cin.get();
get is a function with no parameters that returns a character. Since it is part of input streams, it must be prefixed by the stream name.
A more complete discussion of this is in the class lesson.