Java’s equals() and hashcode() are two methods that work together to verify if two objects have the same value. You can use them to make object comparisons easy and efficient in your Java programs.

Of course, if one is not using Java 7, then this is not an issue and if one is using Java 7, it’s most likely that the standard version should be used instead anyway. Conclusion ...

OK, there's a hashCode that ends in zero -- we'll put it into bucket zero. Here's a hashCode that ends in three -- we'll put it into bucket three. All of a sudden, you get another object. It says it's ...