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.

If you are fortunate enough to be using JDK 7, the newly available Objects class is the obvious (at least to me) choice for implementing the “common” Java object ...

Java job seekers must fully grok this important concept if they want to ace the interview ... For example, the following code used in the tutorial overrides the JDK's standard equals() and hashCode() ...