Conclusion

You’re approaching the end of this module and getting closer to becoming proficient in Kotlin Classes. This lesson gives you another aspect of this topic - the power of overriding.

In this lesson, you learned:

• Overriding methods is a powerful tool that promotes code reusability, flexibility and polymorphism.
• The open modifier on the method of a base class allows you to override it in a subclass.
• Properties in constructors can also be overridden.
• equals() and hashCode() are two methods responsible for class instance identity.
• You can control how instances of a class are recognized as being the same or different by implementing the equals() and hashCode().
• You can use super to access the implementation of the base class.