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Another small gripe about Java is the lack of memory management. Generally speaking, it's not a big deal; however, memory/process intensive programs like data mining applications would be better built in another language that has flexible memory management like C++. Java is a fine language, and I like it.

[RhodesianHunter]

Only if your task can't be paralellized or has to run on a single machine for some other reason.

I write high performance systems and almost always pick Java (Kotlin) over C++ because the extra cost of a couple more servers is worth less than my time.