What is the purpose of with interface and abstract methods?

Started by Trystan, November 17, 2016, 07:04:54 PM

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Declan

November 17, 2016, 07:04:54 PM
Hello, I would like to ask you a big question that I can not answer, what is the purpose of with interface and abstract methods? Please kindly give me an answer please as soon as possible by return message.
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