There are many programming styles and languages available for use. We focus on the object oriented programming style using the Java programming language.
Object oriented programming is a programming style based on software objects.
Encapsulation refers to the bundling of data and related behavior (methods or functions) into a single object.
Inheritance allows the creation of new classes based on existing classes, sharing their attributes and behaviors. Inheritance promotes code reuse and supports the concept of hierarchical relationships between classes.
Polymorphism means that objects of different classes can be treated as objects of a common inherited class. It allows you to write code that can work with objects of different types (classes), as long as they share a common interface or base class.
Abstraction focuses on capturing the essential features and behaviors of an object while hiding unnecessary details. Abstraction helps in designing complex systems by breaking them down into manageable and modular components.
The Java ecosystem is composed of several core components, including the JVM, JRE, JDK, and JShell.
The Java Virtual Machine (JVM) is an operating system independent virtual platform responsible for executing compiled Java bytecode.
The Java Runtime Environment (JRE) adds to the JVM the minimum utilities required to run Java programs.
The Java Development Kit (JDK) adds to the JRE a suite of tools required to develop Java programs, including the Java compiler (javac).
The Java Shell (JShell) is a tool for executing Java code snippets interactively.
The Java Core Library provides a large number of prewritten classes.
Other prewritten classes may be available from external libraries, often stored in JAR files.
JAR is an acronym for Java ARchive.
Low-level Language Execute closer to machine code and provide direct control over hardware resources.
High-level Language Offer more abstraction and are designed to be more user-friendly and easier for humans to create.
Scripting Language Often used for small tasks and web development, and are interpreted at runtime rather than compiled ahead-of-time.
Event-driven computer graphics is one of our learning contexts. We will create objects that we can see on our screen as shapes and interact with them using the mouse and keyboard.
DoodlePad is an open source Java interactive object graphics library we will use for developing fun and engaging Java programs. It was designed for teaching Java programming in an event-driven computer graphics context.
DoodlePad classes encapsulate shapes, render them in a graphics window, and respond to interaction using the mouse and keyboard.
