Java Programming - Objects and Collections - Discussion

Discussion Forum : Objects and Collections - General Questions (Q.No. 2)

Objects and Collections

Which class does not override the equals() and hashCode() methods, inheriting them directly from class Object?

java.lang.String

java.lang.Double

java.lang.StringBuffer

java.lang.Character

Answer: Option

Explanation:

java.lang.StringBuffer is the only class in the list that uses the default methods provided by class Object.

Discussion:

15 comments Page 2 of 2.

Gayudhaya said: 8 years ago

I didn't understand it can you give a clear explanation?

G Sunil Kumar said: 1 decade ago

Why the special behavior for StringBuffer class only?

Anoop kumar said: 8 years ago

Please tell me, what you mean by overriding?

SArfaraz Ahamad said: 1 decade ago

But String class is not Wrapper class.

Vidya said: 2 decades ago

can u give me the clear discription?

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