Learn Programming In Java - Lesson 19: Interfaces and Inheritence.

In this lesson we will cover the important object-oriented programming (OOP) concepts of interfaces and inheritance. No only will we define these terms, but we'll demonstrate how each approach works and more importantly explain when it is appropriate to use each one.

[darkojakimovski]

These are the best tutorials one can find on youtube. Too bad Mike didn't cover more of Java. A word of advice if you don't quite understand any of Mike's lessons, do the activities! Things get much more clearer once you get your hands on the code yourself! Cheers to you Mike! You're an animal! Students at Syracuse are lucky to have you

[stephenstrang]

Thank you, about time someone explained this clearly.
You must be a professional.

[MyRobinhood]

Brilliantly explained. New to java and saw few other videos on inheritance, interface. None explained them as clearly as this does. Thanks a ton Mike for putting all these java videos!! Each of them is awesome..

[Ali-miup]

Absolutely amazing video, very helpful for use cases' understanding!

[wayneegessa]

Brilliantly demonstrated, easy to understand

[troyherrick]

Seems to me like Interfaces tell you what methods you must write in your program if you want to use that item. So, if I want to use a cash register item, the cash register interface tells me that I must write an "open method" and a "close method". If 5 different programmers are working on a Point Of Sale system and they all use the cash register Interface, they you know they will all have "open methods" and "close methods", but their individual methods may be coded slightly different. 

[Appskillsondemand]

Your overviews and examples are very effective in getting the abstract concepts and real implementations mastered.  I would say you have a fair amount of live teaching experience which results in much better training than most tutorials on YouTube.

One tip: please learn to record the audio without all the "pops"; they become distracting after 20 or so.

[hm]

teacher i like a lot your videos they help me a lot thank you very much. i have a question. till now when i write a setter method i put as return type void but in the video  min 20:00 i see you have public String setName method . why you do this?

[franciscozepeda]

thaks so much i am, a rocky but i am learning fast and easy

[marcosalmeida]

Good morning Professor Michael please could upload the code cause i couldn't see some parts of the code .i feel i got lost in your code.

[trixnik]

can i do the same thing with RFID scanner?

[GabrielMLinassi]

can you upload the code to github, please?

[troyherrick]

I still don't get Interfaces. They don't seem like they do anything because they don't have any code in them. I don't see what we would lose if we didn't have Interfaces.

[DraoN]

Funny thing is that I just got a job working with POS terminals and watching this.