Many mistakenly assume that interfaces only sidestep Java’s failure to support multiple implementation inheritance. In reality, that workaround is only a side-effect of interface usage ...

Abstract classes and interfaces in Java ... Can have default and static methods (introduced in Java 8). Can have private methods with the implementation (introduced in Java 9).

A controversial new proposal for .NET suggests the introduction of a limited form of multiple inheritance via abstract interfaces. This feature was inspired by Java ... (i.e. a "default ...

A method might accept a specific type and its subclasses, but you want to restrict usage to a select few implementations of your own design. Java's open inheritance model can ... or implement the ...