D Programming/Interfaces

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There is an article in wikipedia describing the concept of interface in common.

The corresponding D specification is found on digitalmars.

An interface is something like a promise. A class implementing an interface promises to have at least all the listed methods. A class reference can be casted to the type of an implemented interface. This is useful, is another component is only interessted in a certain aspect of an object.

[edit] Interface Declaration

interface Identifier
{   //interface body begins here.
   
}   //interface body ends here.