Other classes are wrapper classes and override equals() and hashCode() methods. The StringBuffer does not override these methods.
Sarfaraz Ahamad said:
(May 14, 2012)
But String class is not Wrapper class.
Pankaj Kalra said:
(Jul 3, 2012)
Why string buffer or string builder not override these 2 mehtods ?
Ghost said:
(Nov 26, 2012)
@Sarfaraz Ahamad.
All wrapper classes and String class overrides the equals() and hashCode().
@Pankaj Kalra.
string buffer or string builder are not classes .
The classes are StringBuffer and StringBuilder. Please follow java naming conventions.
Manoj said:
(Sep 26, 2013)
Please could you give full description?
Why StringBuffer class does not support direct overriding these 2 methods?
Monika said:
(Jan 13, 2014)
I think StringBuffer just uses these two methods as they are provided from Object class. The other three classes override them.
G Sunil Kumar said:
(Aug 7, 2014)
Why the special behavior for StringBuffer class only?
Narasimha said:
(Dec 3, 2014)
I am confusing why StringBuffer and StringBuilder are not able to overriding these two methods equals and hashcode() methods. Please could you clarify the same. Thank you.
Asdf said:
(Mar 11, 2015)
I think StringBuffer and StringBuilder are class use to make string immutable.
Vinod said:
(Mar 25, 2015)
Because StringBuffer is mutable, and its primary use is for constructing strings. If you want to compare content, call StringBuffer#toString() and compare the returned value.
It is not generally useful to override hashCode() for mutable objects, since modifying such an object that is used as a key in a Hash Map could cause the stored value to be "lost".
Anoop Kumar said:
(May 1, 2017)
Please tell me, what you mean by overriding?
Gayudhaya said:
(Jul 7, 2017)
I didn't understand it can you give a clear explanation?
Ravindra Babu said:
(Dec 5, 2017)
Java.lang.StringBuffer is the only class that uses default methods provided by class object.
Santhosh said:
(Jan 20, 2018)
I didn't understand it. Can you give a clear explanation?
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