Why String has been made immutable in Java?
Though, performance is also a reason (assuming you are already aware of the internal String pool maintained for making sure that the same String object is used more than once without having to create/re-claim it those many times), but the main reason why String has been made immutable in Java is 'Security'. Surprised? Let's understand why.
Suppose you need to open a secure file which requires the users to authenticate themselves. Let's say there are two u...
