• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Tim Cooke
  • paul wheaton
  • Paul Clapham
  • Ron McLeod
Sheriffs:
  • Jeanne Boyarsky
  • Liutauras Vilda
Saloon Keepers:
  • Tim Holloway
  • Carey Brown
  • Roland Mueller
  • Piet Souris
Bartenders:

JRE vrs. JVM

 
Ranch Hand
Posts: 88
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
What is the difference between both?
 
Rancher
Posts: 43081
77
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
See #18 in the http://faq.javaranch.com/java/JavaBeginnersFaq
 
Greenhorn
Posts: 8
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Think of it that way:
- JVM: Java Virtual Machine. The program that interpretes Java bytecode stored in .class files. In Windows, java.exe.
- JRE: Java Runtime Environment. A JVM is not enough. You need an implementation of the core Java APIs. As you need in C the shared libraries installed in your system.

In short:
JRE = JVM + core Java APIs (in jar format) + utils
 
Ranch Hand
Posts: 126
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
The above postings are right !. Additionally if you are looking for java development, you need to download Java SDK (or called JDK ). This includes all the above and the tools to develop; compile ; debug and deploy

Raees
[ January 03, 2008: Message edited by: Raees Uzhunnan ]
 
Ranch Hand
Posts: 457
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
nice diagram:

http://java.sun.com/j2se/1.5.0/docs/

JRE - bracket on left

Java Virtual Machine - blue layer on bottom
 
Consider Paul's rocket mass heater.
reply
    Bookmark Topic Watch Topic
  • New Topic