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C++ does include hash functions. Of course, most will just use std::unordered_map.

http://www.cplusplus.com/reference/functional/hash/

That isn't part of the language, that's part of the standard library. Just the same as java, which has a standard hashing function, AND hash table/map.

Ultimately, where does the language end, and the standard library begin? Whats the real difference? Yeah, so C++ and Java don't have built in syntax for hash tables. That's it?

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