Understanding deeply how to use a Map, equals, and hashcode in Java will be a massive help for you to create high-quality code. The Map and object reference concepts are not only present in the Java language but in almost all programming languages. Therefore, if you master the concept of object references, equals and hashcode, and Maps, you can apply this in other programming languages and master them far more easily.
When we are using HashMaps, the equals and hashcode methods go hand-in-hand. That’s because the algorithm from a HashMap uses those methods to indicate if an Objects are different.
What about going deeply into the Map, equals, and hashcode method by trying out this Java Challenge then? Remember, the Java Challenges are a fun way for you to really master Java concepts!
If you want to go deeper into the equals and hashcode methods, I highly recommend you to read the following article:
Comparing Java objects with equals() and hashcode()
That’s it challenger, rock on! Keep taking action and relentlessly break your limits! Don’t hesitate to leave a comment with a question if anything is not clear!
