C++ tokens, rule for naming variable and rule for constructing integer constant, real constant and character constant
C++ character set :- The following image shows the valid character that are used in C++. C++ data types:- 1st of all we have to know that What is a data? Data is a raw material for constructing a information. For example, the following list are the data:- Ram,17, XII C. And from this data we can construct the information as Ram Aged 17 years is in class XII C. Data may be any number,words, amount,quantity. Now, Let's come on the topic: Latter i will discus about 'structure', 'Union', 'Class', Array', 'function','pointer','reference' for now there are five basic data types that are: 1. int(integer) 2. char(Character) 3. float 4. double 5. void Now look at variable: Variable is a entity whose value may change and in programming language it is used to store data. A integer type variable can hold a integer number(number must be a whole number either in positive or in negative but not in fraction), a ch...