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Java Programming – Introduction, Java Essentials, Academic Year 2025, Lecture Summary

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11 pages
2025/2026 Written for academic year
Institution University Of South Africa (Unisa)
Course Introduction to Programming I (COS1511)
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This lecture summary covers the fundamentals of Java programming, including object-oriented programming (OOP) terminology, types of variables, constructors, and an overview of how Java works. It explains key concepts such as classes and objects, local, instance, and class variables, as well as the role of the JVM and JIT in Java’s hybrid compilation process. The document also highlights the advantages of Java and basic installation components like JRE and JDK.

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Java
Programming
the
introduction


By Thomas Hlongwane

, Java Essentials: Your Roadmap


By the time you finish this section, you will be able to:


The big picture Explain why Java was created

The Vocabulary Identify the reserved words

The OOP Mindset Explain how to organize code to mirror real-world objects

The Building Blocks Design and build the primary objects of a program

Data Management Identify the three types of variables a class can use

Organization Understand how packages act like folders

Data structures Build and manipulate Arrays single and Multidimensional

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March 2, 2026
Number of pages
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2025/2026
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