Types of programming language

Types of programming language

1. 3 Paradigms

   • Imperitive
     • Give orders to a computer to complete a task
       • Procedural / Object Oriented Programming
   • Declaritive
     • The user tells the computer the qualities the solution should have
   • Logic/Functional
     • Logic
       • Facts and rules define the problem
         • Which are used to solve the problem
     • Functional
       • A description of the solution is built up through a collection of functions.
         • Examples include Haskell and ML

2. Procedural programming

   • 3 main constructs
     • Sequence
     • Selection
     • Iteration
   • Examples include the C family, or Python
   • Object-Oriented-Programming
     • Object - a combination of data and the actions that can operate on that data
       • Objects can 'inherit' specific attributes from classes, making coding shorter
     • Class - embodies all the information needed to create and manipulate objects of a particular type
     • An attribute is a distinctive feature of a class, such as a car manufacturer
     • A method is a function specific to that class
     • Encapsulation
       • Making certain attributes of a class private, but others are open to view
       • Accessor - A method which allows objects to see the private value
       • A method which allows the attribute to be changed in value

3. Machine code

   • An instruction is made of two componets;
     • OPCODE
       • Represents an instruction
     • OPERAND
       • Binary data

4. Assembly code

   • Coded via mnemonics for OPCODES
   • OPERANDS became decimal or hexadecimal values