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optional machine code generation

Krishna Chaitanya Mannem

Joined: Dec 29, 2012
Posts: 1
In java language specification 7, page 1 there is this paragraph.

Run-time activities include loading and linking of the classes needed to execute
a program, optional machine code generation and dynamic optimization of the
program, and actual program execution.

Can anyone please explain what it means.
Campbell Ritchie

Joined: Oct 13, 2005
Posts: 41006
Welcome to the Ranch

I think it means just in time optimisation. Try this Wikipedia article:- Just-in-time_compilation. I hope that will explain it for you.
It is sorta covered in the JavaRanch Style Guide.
subject: optional machine code generation