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A quickie just to get peace of mind:
Considering the following
final String str = "This is the end";
Is str.length() evaluated at runtime or is it hardcoded as 15 in the bytecode?
str.length()is evaluated at runtime.finalmeans that value of the reference cannot be changed. It has nothing to do with the string itself.However, if you look into the source code of
Stringyou will see thatlength()returns the value of a field, so no computation takes place, the value os simply read…