Recently I read through this Developer Works Document. The document is all about defining hashCode() and equals() effectively and correctly, however I am not able to figure out why we need to override these two methods. How can I take the decision to implement these methods efficiently? 3Best Answer 31
This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. What issues / pitfalls must be considered when overriding equals and hashCode? 1Best Answer 11 The theory (for the language lawyers and the mathematically inclined): equals() (javadoc) must define an equivalence relation … Read more
I have a condition in a silverlight application that compares 2 strings, for some reason when I use == it returns false while .Equals() returns true. Here is the code: if (((ListBoxItem)lstBaseMenu.SelectedItem).Content.Equals(“Energy Attack”)) { // Execute code } if (((ListBoxItem)lstBaseMenu.SelectedItem).Content == “Energy Attack”) { // Execute code } Any reason as to why this is … Read more
A strict equality operator will tell you if two object types are equal. However, is there a way to tell if two objects are equal, much like the hash code value in Java? Stack Overflow question Is there any kind of hashCode function in JavaScript? is similar to this question, but requires a more academic … Read more
How to check if my string is equal to null?
difference between equals() and hashCode()
Why are two empty ArrayLists with different generic types equal?
