Java implements in Kotlin?

I am new to Kotlin and have no prior Java experience, so I may just not know what to look for in the docs.

So I am looking to create a GUI application, looking at demo Java code I have been able to port most of it to Kotlin without a problem until I came across implements.

class ... implements ...

In kotlin implementing interfaces and extending existing classes uses the same common syntax :

So class ... : ...

I see, it seems rather obvious now looking back. Thanks.