Which are true among below cases?

Options
- String class is immutable, StringBuffer and StringBuilder are mutable
- StringBuffer Class is synchronized and StringBuilder is not synchronized
- If programmer want to use several threads then he have to use StringBuffer
- All the above

CORRECT ANSWER : All the above

Discussion Board
string builder is synchronized

option b is incorrect as string buffer and string builder both are synchronized.

anukirti 08-30-2020 07:06 AM

java

ys

M.IFTEKHAR 11-22-2019 08:56 PM

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