Object-Oriented Java Foundations

This unit develops foundational object‑oriented Java skills including defining classes, methods, constructors, and interfaces while introducing arrays, collections, file I/O, and basic event handling. Students will apply these concepts to build small programs that manipulate collections of objects, populate UI tables, and persist data, preparing them for more advanced software development topics in subsequent units.

Learning Objectives

• Implement Java classes and methods—including constructors and static members—and pass values to/from methods to encapsulate data and behavior in small programs (e.g., account and employee examples).
• Apply object-oriented principles by defining subclasses and interfaces to demonstrate inheritance, polymorphism, and member visibility in class hierarchies.
• Use arrays and Java collection classes (such as ArrayList) to store, search, and manipulate arrays of objects, and populate graphical tables from collection data.
• Demonstrate file input/output and basic event-driven interactions by reading from/writing to disk files, handling non-button events, and forming program flow with comparisons and logical operators.