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What is JVM and JRE

ganapathy gopinathan
Ranch Hand

Joined: Aug 10, 2004
Posts: 30
Hi all,

Anyone please help me to understand,

1. What does JVM do?
2. What does JRE do?

Thank u
gopinathan
Mike Gershman
Ranch Hand

Joined: Mar 13, 2004
Posts: 1272
jvm is Java virtual machine. It interprets the bytecode and executes your program.

jre is Java runtime environment It is the jvm and Sun's standard Java class libraries and anything else needed to execute existing Java programs but not enough to create or change programs. Compare to sdk=system develpment kit


Mike Gershman
SCJP 1.4, SCWCD in process
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: What is JVM and JRE
 
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