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

Summary

In this chapter, you have comprehensively understood the JVM, unraveling its critical role in executing Java applications. We explored the platform-specific nature of the JVM, emphasizing that, despite the Java language’s platform independence, each platform requires a distinct virtual machine implementation for optimal compatibility and performance.

The information provided in this chapter is invaluable for several reasons. Firstly, it demystifies the underlying workings of the JVM, shedding light on its role in making Java’s Write Once, Run Anywhere promise a reality. Understanding the JVM’s platform-specific adaptation is crucial for developers and practitioners in ensuring their Java applications perform optimally across diverse hardware and operating system environments.

Looking ahead to the next chapter, How the JVM Executes Java Code, you can expect a deeper dive into the dynamic processes that occur when Java code is executed within the JVM...