StringWriter in JAVA codes ☺

Question

Any1 having good explanation about StringWriter ?
//a good explanation for last 2-3 lines will be helpful

👉some extra knowledge with examples for different functions available , if available then share ☺

//might user Ion is inactive for now and code is also in private (I found the link )
https://code.sololearn.com/c5866j9NEf9I/?ref=app

Answer 1

thnx for the link @Xan 😃👍
some more information is needed
//will do detail research on it & post my answer
//will be helpful to many
//better to follow this thread or I have to create new ::: to help more ppl see it & get helped .

Answer 2

https://stackoverflow.com/questions/27221292/when-should-i-use-javas-stringwriter

Answer 3

StringWriter seems similar to StringBuffer or StringBuilder. It can effectively add chars to the end of a string, although it can't do things like deleting.