Differences betweenabstract classes & interfaces

[Saral Saxena]

HI fOLKS,
I want to know the practical and technical differences between the abstract classes and interfaces..?

[Hebert Coelho]

No need to open two topics almost indenticals.

http://www.coderanch.com/t/561659/java/java/abstract-class-Vs-Interface-real

[Gamini Sirisena]

I think the main difference is that when you want to have common functionality for all child classes
you can use abstract classes (i.e. the abstract class can have method implementations and even constructor implementations)

If an interface is used for such a scenario, all implementing classes will have to implement the common logic.

[Saral Saxena]

abstract class can have method implementations and even constructor implementations

Hi,

Please explain about the constructor implementations in context to abstract classes..!!1

[Rob Spoor]

Hebert Coelho wrote:No need to open two topics almost indenticals.

http://www.coderanch.com/t/561659/java/java/abstract-class-Vs-Interface-real

So let's continue there.