Java Virtual Machine

The Java Virtual Machine (JVM) is a crucial component of the Java Runtime Environment (JRE) that enables Java applications to run on any device or operating system without modification. It abstracts away the underlying hardware and operating system, providing a uniform platform for Java bytecode execution.To understand the importance of the JVM, we have to understand the concept of abstraction. This is key.The abstraction allows developers to write code once and run it on any device or operating system that has a supported JVM, without requiring platform-specific modifications.A simple example would be this: you are writing a Java application that needs to read and write files and modify directories in the file system. In a non-abstraction environment, you would have to worry about differences between operating systems, such as Windows, Linux, or macOS-specific commands for handling files.The file system is different, and we would have a project in which we would...