This question already has answers here: C# difference between == and Equals() (20 answers) Closed 8 years ago.
I am wondering if there is some way to do a doesn\'t equal command in MYSQL.In other words, can you do a command like this: \"SELECT * FROM someTitle WHERE someLabel != \'something\'\"?My code is retu
This question 开发者_如何学Goalready has answers here: What is the difference between == and equals() in Java?
I\'ve got an app in Google App Engine that was working fine. I realized that one on of my JDO-enhanced objects that I forgot to implement equals and hashCode (I need to use the object in a set). So I
I noticed in the source code for HashMap it lists the equals method as final. Why is it that when I override itI do not get a compile error?
How should model class\'s equals and hashcode be implemented in Hibernate? What are the common pitfalls? Is the default implementation good enough for most cases? Is there any sense to use business ke
I have a bunch of class who implement a common interface : Command. And this bunch of class goes to a Map.
I\'ll try to explain my problem as clear as possible :). I am using PropertyChangeSupport to no开发者_运维知识库tify registered views for changes in the properties. One of the property is an object wh
When testing for equality of String\'s in Java I have always used equals() because to me this seems to be the most natural method for it. After all, its name already says what it is intended to do. Ho
I read this SO post after I wrote out the title but still decided to go through with the question on bug-proof implementations of equals in Java. This is my normal implementation