Page 385 - Computer_Science_F5

Computer Science 5. Describe how polymorphism is
achieved through inheritance and
method overriding in Java. Provide
a practical example to illustrate the
FOR ONLINE READING ONLY
concept.
6. Explain the role of dynamic method
dispatch in achieving runtime
polymorphism in Java. How does
it enable method invocation based
on the actual object type?
7. Design a Java program that
demonstrates both compile-time
and runtime polymorphism. Include
examples of method overloading
and method overriding to showcase
the flexibility of polymorphic
behavior.
8. How does the Java compiler
determine which overloaded
method to call during compile-time
polymorphism?
Building an application with Python
When building any program in this section,
there are several stages to undergo. The
following are three major stages:
Stage One: Planning the project
(1) Define objectives
(a) Purpose: Clearly articulate what (2) Key considerations
the application aims to achieve.
(b) Goals: Specify the desired
outcomes, such as improving
efficiency or solving a particular
problem.
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Computer Science Form 5.indd 376
(2) Identify requirements
(a) Features: List all functionalities
the application should have.
i. Example: User
authentication, data input,
reporting.
(b) Data inputs: Identify the types of
data the application will handle.
i. Example: User details,
transaction data.
(c) Outputs: Define what the
application will produce.
Example: Reports, notifications.
(3) Create a design document
(a) Outline classes: List all classes
with a brief description.
(b) Methods and relationships:
(i) Detail methods for each class.
(ii) Describe how classes interact.
Stage Two: Designing classes and
relationships
(1) Class diagrams
(i) Purpose: Provide a visual
representation of classes and their
interactions.
(ii) Tools: Use diagramming software
like UML or simple drawings.
(a) Encapsulation:
(i) Keep data private within
classes.
(ii) Provide public methods to
access and modify data safely.
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23/07/2024 12:34