This book introduces Object-Oriented Programming using Java, covering core concepts like classes, objects, inheritance, and polymorphism. It explores Java basics such as data types, control flow, methods, and arrays. Advanced topics include interfaces, abstract classes, exception handling, and multithreading. File handling and database operations using JDBC are also covered. GUI development with AWT, Swing, and applets is introduced. The course is supported by standard textbooks for both theory and practical learning.