Aug 17, 2013 · Java 8 introduces “Default Method” or (Defender methods) new feature, which allows developer to add new methods to the interfaces without breaking the existing …

Jul 23, 2015 · Before Java 8, if a new method was added to an interface, then all the implementation classes of that interface were bound to override that new method, even if they …

interface MyInterface { /* * This is a default method so we need not to implement this method in the implementation classes */ default void newMethod() { System.out.println("Newly added …

Nov 15, 2015 · So, if a new method is to be added in an interface then its implementation code has to be provided in the class implementing the same interface. To overcome this issue, Java …

Nov 14, 2013 · Java 8 introduces default methods to provide the ability to extend interfaces without the need to modify existing implementations. I wonder if it's possible to explicitly invoke …

For backward compatibility java has provided the feature of Default method. So that you can add new methods to interface with default implementation, so the existing classes would not need …

Jan 22, 2017 · As suggested in the answer, create implementation class for the interface and test it, for an example I modified getSrc method in your ABC interface, as below: import …

Jul 17, 2019 · A functional interface is an interface having a single abstract method. The entire purpose of defining functional interfaces is to enable the implementation of the single abstract …

The parameter types differ -- the interface method takes an Object and the implementing class method takes a List<?>. This means that you have overloaded the method, not overridden it. …

Jul 6, 2014 · Similarly, when you provide a default implementation of the java.lang.Object's toString method in an interface, you are introducing an ambiguity, because any class …