Why are some language and some things no other language?

Why are some language and some things no other language?
For example, java language has no bit, c ++ and c no strings, no complex data structures?
Is it because they do not need the language itself, or there is another good way to represent "These things do not" to express; or or this orientation is such language?

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Origin www.cnblogs.com/big1987/p/10945733.html