• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Rob Spoor
  • Tim Cooke
  • Junilu Lacar
Sheriffs:
  • Henry Wong
  • Liutauras Vilda
  • Jeanne Boyarsky
Saloon Keepers:
  • Jesse Silverman
  • Tim Holloway
  • Stephan van Hulst
  • Tim Moores
  • Carey Brown
Bartenders:
  • Al Hobbs
  • Mikalai Zaikin
  • Piet Souris

interfaces

 
Ranch Hand
Posts: 207
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I'm a long-time C# cat trying to translate my skills over to Java.

In C#, when I create an interface I can use it as a means of declaring a type in an abstract manner, like so:



Does it work this way in Java? I'm using Eclipse and it's telling me it can't find my interfaces as types...is this just an Eclipse issue?

I tried this:



If this is a Java "gotcha", are abstract classes the same?

Thanks!
 
author and iconoclast
Posts: 24203
44
Mac OS X Eclipse IDE Chrome
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Your example Java code is exactly right; the devil is in the details, though, so perhaps some detail is wrong in your real code. Maybe it's a package thing? Make sure the package containing the interface is imported when you compile your other code (assuming everything's not in one package.)
 
You showed up just in time for the waffles! And this tiny ad:
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop
https://coderanch.com/wiki/718759/books/Building-World-Backyard-Paul-Wheaton
reply
    Bookmark Topic Watch Topic
  • New Topic