LESSON 1.1 C++ OVERVIEW

• DATA TYPES


  a classification that dictates what a variable or object can hold
• 3 Basic Major Data Types

  1. Numerical
  2. Alphabetical
  3. Logical
• Integer no. 


  whole number
• Integer no. 


  int, short and long
• Floating point numbers


  2 types: float and double
• Alphabetic Data Type


  1. Character Data Type
  2. Strings Data type
• Character Data type


  Store a single character
• Strings Data type


  Store 2 more characters : “Melissa” or “apple”
• LOGICAL DATA

  • Supports two vaues: true or false
  • Keyword: bool
• C++ PRIMITIVE DATA TYPES

  A) integral

  B) floating

  C) char

  D) short

  E) int

  F) long

  G) bool

  H) float

  I) double

  J) long double

  K) unsigned

  
• IDENTIFIER


  name to denote labels, types, variables, constant or functions, in a C++ program.
• • Identifiers should be descriptive
• VARIABLE


  Location on computer’s memory to store data then use and change its value in a program
• CONSTANT


  Fixed value, const
• 


  const [data type] [name] = initial value