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Java has the Java native interface where you can interface with c/c++ written code

• nradov 3y ago
  JNI is kind of a hassle. If most of the heavy lifting is being done by native code then using Java becomes pointless. Might as well just go with Python which makes calling native code a bit easier.
  • cempaka 3y ago
    Project Panama is meant to make this a lot nicer, and they often explicitly mention trying to stay competitive in machine learning as a key impetus for it. But yeah, JNI is so awful even the language architects are compelled to trash it and apologize for how bad it is.
  • water9 3y ago
    I cant argue with you there, but Java isn’t that much slower than c++ now a-days. especially on an X86 platform where there’s been lots of time to tune the JVM.
    • nradov 3y ago
      Sure, Java performance is good but again if most of the real work is being done in native code then it doesn't really matter.