JVM stands for Java Virtual Machine. It is an abstract machine that provides a runtime environment for Java programs to run on different platforms, such as Windows, Linux, macOS, etc.
When you write a Java program and compile it, the resulting bytecode is platform-independent and can be executed on any platform that has a JVM installed. The JVM interprets the bytecode at runtime and executes it on the underlying hardware.
The JVM provides several key features that make Java a powerful and versatile programming language, including automatic memory management, platform independence, and security features such as sandboxing and bytecode verification. It also provides a set of standard libraries and APIs that make it easy to write portable and robust Java programs.
In summary, the JVM is a critical component of the Java platform, providing a runtime environment for Java programs to execute on different platforms, and enabling Java's key features such as platform independence, automatic memory management, and security.