are in module java.base of loader 'bootstrap'

Java is a popular and powerful programming language that is used to develop a wide range of applications. In order to use the Java programming language, it is important to understand how Java modules work. Java modules can be used to organize code into separate, reusable components. In this article, we will explore the concept of Java modules and focus on the modules that are part of the java.base module, which is loaded through the bootstrap loader.

What are Java modules?

Before we dive into the java.base module, let's first explore the concept of Java modules. A Java module is a self-contained unit of code that can be used to organize code into separate, reusable components. This allows developers to break a large application into smaller, more manageable modules. Java modules can be imported and exported, which allows developers to control access to certain pieces of code. Java modules also encourage modularity, which leads to more maintainable and scalable code.

The java.base module

The java.base module is one of the core modules in Java 9 and above that is loaded through the bootstrap loader. The module contains the fundamental classes and interfaces that are used throughout the Java API. This includes classes such as Object, String, and Integer. The java.base module is required by all other modules, and it is automatically loaded by the JVM. This ensures that the fundamental classes and interfaces in the Java API are always available to all applications.

Loading the java.base module

As mentioned earlier, the java.base module is loaded through the bootstrap loader. The bootstrap loader is the first class loader that is loaded by the JVM and is responsible for loading the core Java classes and interfaces. The bootstrap loader is built into the JVM and is not visible to developers. When the JVM starts up, it loads the java.base module, along with other core modules, through the bootstrap loader. This ensures that the fundamental classes and interfaces in the Java API are always available.

Conclusion

Java modules are an important part of the Java programming language and are used to organize code into separate, reusable components. The java.base module is one of the core modules that is loaded through the bootstrap loader and contains fundamental classes and interfaces that are used throughout the Java API. Understanding how Java modules work and how the java.base module is loaded is important for any Java developer. With modularity and scalability being important factors in modern software development, Java modules provide a valuable solution.