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Immutable objects are highly desirable . Because an immutable object's state cannot be changed, they are particularly useful in concurrent environments . Immutable options can simplify code and ...
Java doesn't work like this, java.lang.String and java.lang.StringBuffer aren't related through inheritance and when you call StringBuffer.toString () a brand new String is created with a copy of ...
Extent-local variables would provide a way to share data both within a thread and with child threads in Java, making it easier to reason about data flow.