Created: 2023-08-27 10:34
Status: #concept
Subject: Programming
Tags: Java Bytecode Virtual Machine

Java Virtual Machine

The runtime environment that comes with the Java JDK which is compatible across platforms.

provides hardware platform specifications for compilation.
reads compiled Bytecode which are platform-independent to execute code.
manages memory for the programmer.
provides a Garbage collector on runtime.

Running Java Programs

We use the java [CLASS_FILE] command to execute a program.

in order to create a CLASS_FILE, we need to use javac [JAVA_FILE] first.

$ javac Hello.java
$ java Hello.class
Hello World!

References