Data Types in C++ - tccicomputercoaching.com

In computer science and computer programming, a data type is a grouping of data through which the compiler or interpreter can know how the developer expects to utilize the data. Most programming languages support various types of data, for example:
12 , 67.90, 'c', "hello!! Tom"
As a human being we can differentiate all values are different, but machine can't differentiate. So, we have to inform compiler which type data is being used.

There are main 3 categories in C++ Language:

1. Built in Types:

• void - valueless special purpose type which we will examine closely in later sections.
• int - integer: a whole number.
  • e. 45,6789
• float - floating point value: a number with a fractional part.
  • e. 56.89
• char - a single character.

Four types data there are:

1. a) small a to z
2. b) capital A to Z
3. c) 0 to 9 digit
4. d) other symbols like tab, space,*,>,?,$ etc.

i.e 'x', 'c', '1','*','#' etc.

2. User Defined Types:

• Structure
• Union
• Enum
• Class

3. Derived Types:

• Array
• Function
• Pointer

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