Why String is immutable in Java
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Submitted By - Javin Paul
Submitted on - 2011-01-22 15:39:34
This is one of the most popular interview question on String in Java which starts with discussion of What is immutable object , what are the benefits of immutable object , why do you use it and which scenarios do you use it.
It can also come once interviewee answers some preliminarily strings questions e.g. What is String pool , What is the difference between String and StringBuffer , What is the difference between StringBuffer and StringBuilder etc.
Though there could be many possible answer for this question and only designer of String class can answer this , I think below two does make sense ...