Java Virtual Machine - Introduction

Data types

Primitive types and values

Reference types and values

Run-time data areas

Frames

Representation of objects

Floating-point arithmetic

Special methods

Exceptions

Instruction set summary

Class pbraries

Pubpc design, private implementation

The JVM is a virtual machine, an abstract computer that has its own ISA, own memory, stack, heap, etc. It runs on the host OS and places its demands for resources to it.