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= Final variables =
A '''final [[variable]]''' is [[immutable]]. It can only be assigned to once. If the variable is a field of a class, it must be assigned to in the constructor of its class. (Note: If the variable is a reference, this means that the variable cannot be re-bound to reference another object. But the object that it references is still mutable if it was originally mutable.)
A <tt>final</tt> variable in Java is equivalent to a <tt>const</tt> variable in C++.
Unlike the value of a [[constant]], the value of a final variable is not necessarily known at compile time.
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