Try reading these:
https://coderanch.com/t/392420/java/java/Strings-immunable-does-mean https://coderanch.com/t/367252/java/java/Strings Oh and Prasad,
Please change your name to be compliant with
JavaRanch's naming policy.
Your displayed name should be 2 separate names with more than 1 letter each. We really would prefer that you use your REAL name.
You can change your name:
here. Pleeeeeeeeeeeeeeeease,
Cindy