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|Why is String immutable in Java ?|
|Why Char array is preferred over String for storing password?|
|How does making string as immutable helps with securing information ? How does String Pool pose a security threat ?|
|How is string object immutable if we can concat a string to it ?|
|How to implement an immutable class ?|
|What is an immutable class ?|
|What is an Immutable Object ?|
|Does Declaring an object "final" makes it immutable ?|
|Is String final in Java ?|
|What are stateless objects ? How are they different from immutable objects ? Which of these two is thread safe ?|