Deloitte Testing Interview Experience | Real Time Interview Questions and Answers

[@sivakumar-df9kk]

I am watching all your recent videos, that word... let me share my screen.......it gives more expecting to learn ..😀😀

[@KishorThakare-r8k]

String is immutable whereas StringBuffer and StringBuilder are mutable classes. StringBuffer is thread-safe and synchronized whereas StringBuilder is not. That's why StringBuilder is faster than StringBuffer

[@srivishnuyadav3244]

1.Strings are immutable… buffer and builder are mutable. 2. String buffer is Synchronised . so single thread can access methods at a time , So it is thread safe .So it is not faster. Version- Java 1.0 To over come this issue String builder is introduced at version Java 1.5 String builder is non-synchronised. So multiple threads can access at a time … so it is not thread safe . So it is faster

[@kalyanipidurkar7299]

String is immutable class whereas string buffer and builder is mutable class. String is not synchronised, string buffer is synchronised and string builder is non synchronised. String is fast as compare to string buffer and string is slow as compare to string builder.

[@subhanlucky9338]

String : once created, their contents cannot be changed because they are immutable.As strings are immutable , they are thread-safe .Used mostly where the string will not be modified frequently. StringBuilder : They are Mutable, as you can modify their contents after they are created.It is not thread-safe as it is designed to use in single-threaded environments. Meaning it is un synchronized I.e the reason for it's faster performance. StringBuffer : They are Mutable, as you can modify their contents after they are created.It is thread-safe and can be used in multi-threaded environments because Meaning it is synchronized I.e I.e the reason for it's slower performance.

[@aigulidrisova1126]

Definitely all questions were interesting and difficult for me

[@sima3952]

Thank you for sharing😊

[@vishaldhell26]

I could not understand why we can't override a method of a superclass. In the first program.

[@prdp4747]

Basically when we override in derived class, access specifier should be of same scope or higher. Hierarchy of access specifier is private

[@anantapurtravelvlogs7973]

sir please interview me also

[@moodoffbhubaneswar5486]

noned