Book Image

Mastering the Java Virtual Machine

By : Otavio Santana
Book Image

Mastering the Java Virtual Machine

By: Otavio Santana

Overview of this book

Mastering the Java Virtual Machine is a comprehensive guide that will take you into the heart of Java programming, guiding you through the intricate workings of the Java Virtual Machine (JVM) and equipping you with essential skills to become a proficient Java developer. You’ll start by understanding the JVM, exploring its architecture and how it executes Java code. Through detailed explanations and real-world examples, you’ll gain a deep understanding of JVM internals, enabling you to write efficient and optimized Java applications. As you progress, you’ll delve into memory management and execution, unraveling the complexities of heap and stack management, garbage collection, and memory profiling. You'll learn how memory is allocated and reclaimed in the JVM, as well as how to optimize memory usage and identify performance bottlenecks in your applications. With this knowledge, you’ll be able to create Java programs that are not only robust but also highly performant. By the end of this book, you’ll have the skills needed to excel in Java programming, writing efficient, maintainable code.
Table of Contents (19 chapters)
Free Chapter
1
Part 1: Understanding the JVM
5
Part 2: Memory Management and Execution
9
Part 3: Alternative JVMs
12
Part 4: Advanced Java Topics

Java framework principles

A nuanced understanding of key principles is paramount for architects and developers in Java framework development. The first crucial aspect to consider is API design, which significantly influences the framework’s usability and adoption. Choosing between a declarative and an imperative API design is pivotal. Declarative APIs emphasize expressing the desired outcome, promoting readability and conciseness, while imperative APIs provide a step-by-step approach, offering more explicit control. Striking the right balance between these approaches is vital to ensure not only ease of use but also the long-term maintainability of the framework.

Another critical principle is executability, where careful consideration of reflection becomes pivotal. Reflection can offer dynamic capabilities, enabling examining and manipulating classes, methods, and fields at runtime. However, this flexibility comes with a performance cost. Alternatively, frameworks can opt...