Java Fundamentals

This online course introduces learners to the fundamental concepts of programming using Java, focusing on core language constructs and essential problem-solving skills. It is designed for beginners who are starting their journey in software development and need a clear, structured understanding of how programs are built and executed. The course begins with variables and data types, helping students understand how information is stored, represented, and manipulated in a program. Learners then explore strings, concatenation, and basic input/output operations, followed by boolean logic, conditional expressions, and control flow using if statements and switch constructs. A significant portion of the course is dedicated to loops and arrays, enabling students to work with repetitive logic and collections of data efficiently. Students also learn how to structure programs using methods, improving code readability, reuse, and maintainability. The program introduces object-oriented programming concepts such as classes, objects, encapsulation, inheritance, and interfaces. Special attention is given to the difference between mutable and immutable string types and how these affect performance and program behavior. Each lesson includes theory, quizzes, source code examples, and practical assignments that reinforce learning through hands-on practice. By the end of the course, learners will be able to write simple yet well-structured Java programs and will be prepared to move on to more advanced topics in object-oriented and backend development.