Java Virtual Machine

Java Virtual Machine

Provides hardware platform specifications

Reads compiled byte codes that are platform independent

Is implemented as software or hardware

Is implemented in a Java technology development tool or a Web browser

JVM provides definitions for the:

  • Instruction set (central processing unit [CPU])
  • Register set
  • Class file format
  • Stack
  • Garbage-collected heap
  • Memory area

Bytecodes that maintain proper type discipline from the code.

The majority of type checking is done when the code is compiled.

Every Sun approved implementation of the JVM must be able to run any compliant class file.

Java : Java Virtual Machine Program List