What are the environment factors/constraints on a String in java? [duplicate]

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• How many characters can a Java String have? 6 answers

Given that in some languages an integer variable may be restricted to the memory of the system (i.e. a 32-bit system can store numbers between -(2^31) and (2^31)-1, but this is different for 64-bit), what are similar environmental factors to take into consideration for Strings, specifically those in Java?

I am under the impression String lengths are tied to integers, so a string on a 32-bit system may not hold a string of more than (2^31)-1 characters? Is this correct?

Are there any other factors I should consider?