// The worst possible legal hash function - never use! @Override public int hashCode() { return 42; } It’s legal because it ensures that equal objects have the same hash code. It’s atrocious beca
Assume we have three sets of strings in Scala. One has elements A,B,C. Two has elements B,C,D. And Three has elements J,K,I.
Object javadocs and Josh Bloch tell us a great deal about how hashCode/equals should be implemented, and good IDEs will handle fields of various types correctly.Some discussion about all that is here.
I have the following code: List<Pattern> patterns = Lists.newArrayList(Pattern.compile(\"blah\"), Pattern.compile(\"blah2\"));
Lovely equals and hashcode, all the theory is here and also here I have taken the decision to use the auto-generated id within equals() and hashcode() in a number of my hibernate entity/domain object
My hashcode function for string is as follows hashVal=(127*hashVal+key.charAt(i))%1690879开发者_运维百科9
Consider the following test case, is it a bad practice to use the hashCode method inside of equals as a convenient shortcut?
I need to implement equals() and hashCode() for an A开发者_开发百科ddress class. I believe,the non null fields are taken to determine hashCode() and equals().In my application,Any of the fields excep
What is the standard idiom for implementing the equals and hashCode methods in Scala? I know the preferred 开发者_开发技巧approach is discussed in Programming in Scala, but I don\'t currently have a
I know that when overriding hashcode() and equals() of my persistent entities I should not include ID and only include the meaningful properties that uniquely identify the object.
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