HIGH-LEVEL Language Revision Guide By Tom

Declarative programming The computer is given a set of facts......And a Goal This finds all members with 2G In this case Results are; John, Val, Don A declarative language doesn’t need a set of instructions......It is capable of deciding how to solve the problem presented

Predicate logic This finds all Male members. In this case Results are; John, Hal, Don In this case Results are; Hal The Computer searches it’s facts in order, if it finds a non matching result,...it has to return to the original search criteria and start over. This is Backtracking

Object Oriented Programming OOP relies on objects in the real world being classified This is a Class Sub-Classes Are Objects Objects can only provide data from within a Class. This is called data encapsulation

Object Oriented Programming SUPER CLASS! Super class because other classes can access data from it and vice versa. Sub Classes are called derived classes. The derived classes have inherited data from the super class.

Unified Modelling Language UML consists of a number of descriptive diagrammatic representations that describe the stages required to produce object- oriented programs Object-oriented languages are complex languages and methods have had to be developed which can be used to define and explain the solutions that are produced This methodology for planning and explaining object- oriented programming is called the Unified Modelling Language (UML) You don’t need to worry too much about UML, you only need to be able to understand diagrams and interpret them

Object & Use case Diagrams This sort of diagram shows the attributes for specific objects from a class Shows what is happening in a system rather than how it is done. Users are depicted outside the box and processes over which they have some control are shown and linked with the box

State & Activity Diagrams Shows the state of an object through the process Activity diagrams are like flowcharts showing how the logic behind the work has developed