Topics
Number Systems
Program Analysis
Introduction to C+ +
- Introduction to C++
- Character Sets
- Standard I/O Strems in C++
- Type Modifiers
- C++ Data Types
- Variables in C++
- Constants
- Compiler Tokens
- Operators in C++
- Comments in C++
- Scope and Visibility
- Control Statements
- Functions in C++
- Default Arguments
- Techniques used to pass Variables into C++ Functions
- Function Overloading
- Inline Functions
- Recursion
- Pointers in C++
- Arrays in Data Structure
- References
- Type Conversion in Expressions
Visual Basic
Introduction to Networking and Internet
- Introduction to Networking Technology
- Networking Terms and Concepts
- Concept of Computer Network
- Network Security
- Network Applications
Data Types
- Built-in type is also called a basic or primary data type. There are five basic data types. Integer (int), character (char), float (float), double (double), and void (void) are the basic data types.
- The user-defined data types are structure, union, class, and enumeration; they are defined by the user in the programs as per the programmer.
- The derived data types are also called structured data types or secondary data types. They are formed by using basic data types of the language. Array, Function, Pointer are derived data
types
| Name | Bytes* | Description | Range* |
| char | 1 | Character or integer 8 bits long | signed : -128 to 127 unsigned : 0 to 255 |
| short | 2 | Integer 16-bits length | signed : –32768 to 32767 unsigned : 0 to 65535 |
| long | 4 | Integer 32-bits length | signed : –2147483648 to 2147483647 unsigned : 0 to 4,294,967,2955 |
| int | * | Integer Its length traditionally depends on the length of the system's word type ; thus, in MSDOS, it is 16 bits long. Whereas in 32-bit systems (like Windows 9x/200/NT and systems that work under protected mode in x86 systems), it is 32 bits long (4 bytes). | See short, long |
| float | 4 | floating-point number | 3.4e + / - 38 (7 digits) |
| double | 8 | double precision floating point number | 1.7e +/ - 308 (15 digits) |
| long double | 10 | long double precision floating-point number. | l.2e +I - 4932 (19 digits) |
| bool | 1 | Boolean value. It can take one of two values : true or false. NOTE : This is a type recently added by the ANSI-C++ standard. Not all compilers support it. | True or False |
