Purpose of Interfaces in Java API if every abstract method should be overridden by programmer
38390
Is there more to an interface than having the correct methods
32263
C# Interfaces. Implicit implementation versus Explicit implementation
4356
What's wrong with overridable method calls in constructors?
87572
Why @Override needed in java or android?
115847
Why are C# interface methods not declared abstract or virtual?
69594
What is the difference between an interface and abstract class?
127808
Abstract class with all concrete methods
15374
JDBC- Implementation of interfaces
10143
Why does (does it really?) List implement all these interfaces, not just IList?
12236
Why doesn't Java allow overriding of static methods?
139818
Why implement interface explicitly?
23893
Why java classes do not inherit annotations from implemented interfaces?
100925
Does an interface by default extend Object?
112804
Java Interface Usage Guidelines -- Are getters and setters in an interface bad?
50570
When to use an interface instead of an abstract class and vice versa?
21739
When to use abstract classes?
102355
Java 8: virtual extension methods vs abstract class