Introduction - If you have any usage issues, please Google them yourself
Virtual machine is an abstract computer, which is realized by simulating various computer functions on a real computer. Java virtual machine has its own perfect hardware architecture, such as processor, stack, registers, etc. It also has corresponding instruction system. The Java virtual machine masks the information related to the specific operating system platform, so that Java programs can run on a variety of platforms without modification only by generating the object code (bytecode) running on the Java virtual machine.