Java vs. C++: The Performance Showdown
Jan 12, 2010, 20:02 (7 Talkback[s])
(Other stories by Liviu Tudor)
"Since the early days of the Java programming language, some
have argued that Java's being an interpreted language has made it
inferior to the likes of C and C++ in terms of performance. Of
course, C++ devotees would never, ever even consider Java a
"proper" language, while the Java crowd always throws "write once,
run everywhere" in the faces of the C++ programmers.
"First things first, how well does Java perform when it comes to
basic integer arithmetic? If I asked you how much 2 x 3 is, you
would probably answer in no time. How long would it take a program?
To check, here's a basic test:
"1. Generate first X numbers of random integer numbers.
2. Multiply those numbers with every number from 2 to Y.
3. Compute how long it takes to perform the whole set.
"Because you're not interested in how long it takes to generate
a random number, it is important that you generate the random
numbers upfront, before you start measuring."
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