Modern Programming in Java is a comprehensive guide to mastering the principles, tools, and techniques of contemporary software development using the Java programming language. Aimed at developers who seek to build scalable, efficient, and maintainable applications, this book combines foundational Java concepts with modern best practices and cutting-edge features introduced in recent Java releases (Java 11?21). It covers object-oriented and functional programming paradigms, multithreading and reactive programming, design patterns, clean code practices, and enterprise application development with popular frameworks such as Spring Boot.