Just like others have found out with C/C++ on other platforms, you can twiddle bits and get faster performance with Java on cell phones too. You just have to know what you're doing;-) which hopefully Mr. Carmack will continue to do to find the secrets of J2ME technology that some already have discovered.
Also, you can deride JIT compilers on message boards, but if you take a look at Jbenchmark numbers, you'll see there is a world of difference between different Java VMs with different kinds of JITs, just like a Mustang with a 4-cylinder engine is different than a Mustang with a 5.0 liter engine.
It's easy to take pot-shots at Java technology for cell phones hiding behind a computer monitor, but those of us in the trenches who know how to work J2ME programming (like now John Carmack is starting to learn) will do well on the 650+ million cell phones that run J2ME technology.
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Just like others have found out with C/C++ on other platforms, you can twiddle bits and get faster performance with Java on cell phones too. You just have to know what you're doing ;-) which hopefully Mr. Carmack will continue to do to find the secrets of J2ME technology that some already have discovered.
Also, you can deride JIT compilers on message boards, but if you take a look at Jbenchmark numbers, you'll see there is a world of difference between different Java VMs with different kinds of JITs, just like a Mustang with a 4-cylinder engine is different than a Mustang with a 5.0 liter engine.
It's easy to take pot-shots at Java technology for cell phones hiding behind a computer monitor, but those of us in the trenches who know how to work J2ME programming (like now John Carmack is starting to learn) will do well on the 650+ million cell phones that run J2ME technology.
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