
"The JVM has two primary functions: to allow Java programs to run on any device or operating system (known as the "write once, run anywhere" principle), and to manage and optimize program memory. When Java was released in 1995, all computer programs were written to a specific operating system, and program memory was managed by the software developer. It's not hard to see why the JVM was a revelation in that era."
"Technical definition: The JVM is the specification for a software program that executes code and provides the runtime environment for that code. Everyday definition: The JVM is how we run our Java programs. We configure the JVM settings (or use the defaults) and then tell it to execute our application code. When developers talk about the JVM, we sometimes mean in general the infrastructure that the Java platform provides to our code."
The Java Virtual Machine (JVM) is a program that executes other programs and provides a runtime environment for Java-based code. It enables write-once, run-anywhere portability by allowing Java programs to run on any device or operating system. The JVM manages and optimizes application memory, reducing developer burden and improving stability and performance. The JVM is defined as a specification but is also experienced as the runtime process configured and invoked to run applications. Developers interact with the JVM through settings and commands, and they often refer to the JVM as the runtime infrastructure provided by the Java platform.
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