Hello Guys I am unable to understand one example in Builder

Question

Hello Guys I am unable to understand one example in Builder

design pattern

In that example

Public interface Packing {
Public String pack();
Public int price();
}

Public abstract class CD extends Packing {
Public abstract String pack();
}

Public abstract class Company extends Packing {
Public abstract int price();
}

Instead of this they can have two abstract class

Why they need interface?

0

01.08.2020

1 ответов

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rooL · Accepted Answer

rooL

What's that about builder pattern?

0

01.08.2020

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