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Topic 4 : Introduction to a Visual IDE - Coggle Diagram
Topic 4 :
Introduction to a Visual IDE
Introduction
Generally, there are 5 steps in programming development life cycle:
Problem definition/ analysis
Algorithm design
Algorithm implementation/coding
Program testing and debugging
Program maintenance and documentation
In visual programming, the algorithm design can be done through a storyboard
Concepts in Visual IDE
Comments
are used to document the code – explain the purpose particular segment of the program to the human reader.
Testing
:An important step in creating a program is to run it – to be sure it does what
you expect it to do.
An
instruction
is a statement that executes
Object
An object is a program bundle of variables and related methods
Object is defined by its properties and its methods.
Classes
A class is a blueprint that defines the variables and the methods common to all objects of a certain kind
For example: car is one of the choices within the vehicle class
The Alice software provides galleries with collections of classes that can be used to create objects
Composite Objects
Objects are commonly made of other objects.
Composite object include class objects as instance variables of other classes