Description

This Grade 12 IT textbook transitions students from foundational code reuse to building professional, robust, and scalable systems using advanced concepts in Java and SQL. The Java curriculum is dedicated to mastering advanced Object-Oriented Design (OOD) principles, focusing on the critical differences between Inheritance (Is-A) and Composition (Has-A). Students will master complex data modeling using Arrays of Objects for one-to-many relationships, manage data integrity with in-class validation, and implement runtime flexibility through Polymorphism. Concurrently, the SQL section elevates database skills by introducing essential multi-table operations, including Joins, Subqueries, and complex Data Manipulation (DML). This book provides a rigorous, practical curriculum designed to transform learners into proficient software developers capable of building and maintaining industrial-strength applications. Resources accompanying this book is available for download from www.codeITBooks.co.za.