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Java Intro to Java Web Development with Spark Bells and Whistles Building Our Model

Binyamin Friedman
Binyamin Friedman
14,615 Points

Why make an interface?

I didn't really understand what the point of using an interface is.

3 Answers

james south
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,258 Points

in java there is no multiple class inheritance, you can only use one, but you can implement multiple interfaces to inherit their additional functionality.

there is a long and illustrated the answer here too https://softwareengineering.stackexchange.com/questions/145437/why-use-an-interface-when-the-class-can-directly-implement-the-functions

that one finally made it click to me