Discussion :: Objects and Collections - Pointing out the correct statements (Q.No.3)
|Jjj said: (Sep 14, 2015)|
|Two new empty String objects will produce identical hash codes.
The above will produce unique hash codes right and therefore its incorrect or am I wrong?
|Radistao said: (Dec 5, 2015)|
|Damn, guys, hashCode(), not hashcode() - JAVA METHODS ARE CASE SENSITIVE!|
|Ford Prefect said: (Jul 18, 2016)|
|The question is asked in a confusing way. The text should be changed from "incorrect" to "correct" and the answer should be inverted. Also, it's hashCode () not hashcode ().|
|HEPBO3AH said: (Jul 20, 2016)|
|@Jjj you are correct.
Two empty strings do produce identical hashCode(). Also, some Collections DO use hashCode() to store help locate the data, namely HashMap. Its even has a "hash" in its name. Terrible question
|Avinash said: (Oct 5, 2016)|
|Every object uses hashCode, why only for some collections?|
|Sat said: (Dec 15, 2016)|
|The hashCode always return positive int value, not a negative value, or float or double etc then how the #2 is wrong?
As #3 as for giving string class inherit hashCode() from object class that is correct because it is mentioned to inheritance not for how the hashCode is calculated for a string?
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