query: Writing equals() and hashcode() method in the real application
positive_passages.docid: 878
positive_passages.text: What issues should be considered when overriding equals and hashCode in Java?
negative_passages.docid: 146732
negative_passages.text: How does a Java HashMap handle different objects with the same hash code?
negative_passages.docid: 89052
negative_passages.text: When overriding equals in Java, why does it not work to use a parameter other than Object?
negative_passages.docid: 70294
negative_passages.text: HashMap and int as key
negative_passages.docid: 157906
negative_passages.text: When should I use the HashSet type?
negative_passages.docid: 63029
negative_passages.text: Why does the default Object.toString() include the hashcode?
negative_passages.docid: 118582
negative_passages.text: Using the equality operator == to compare two strings for equality in C
negative_passages.docid: 148944
negative_passages.text: How do you determine if two HashSets are equal (by value, not by reference)?
negative_passages.docid: 94524
negative_passages.text: Test of equality (equals and hash code method)
negative_passages.docid: 152371
negative_passages.text: equals vs Arrays.equals in Java
negative_passages.docid: 36686
negative_passages.text: Comparing strings with == which are declared final in Java
negative_passages.docid: 101173
negative_passages.text: Testing string equality using hashCode()
negative_passages.docid: 15548
negative_passages.text: Is a Java hashmap search really O(1)?
negative_passages.docid: 123167
negative_passages.text: What is the use of hashCode in Java?
negative_passages.docid: 148619
negative_passages.text: Is there a reason not to use  (null safe equals operator) in mysql instead of =?
negative_passages.docid: 109876
negative_passages.text: In the msdn guidance on Equals override, why the cast to object in the null check?
negative_passages.docid: 134644
negative_passages.text: Compare two objects with .equals() and == operator