When you implement an interface method (by overriding the interface’s method header), remember that all of the methods whose headers are declared in the interface are implicitly declared public.

See the Java 101 Java interfaces tutorial for a more in-depth introduction to using interfaces in your Java programs, including where and where not to use default, static, and private methods.

3. default methods will avoiding utility classes. i.e all the collections class method can be provided in the interfaces itself. 4. default methods will removing base implementation classes.5. one of ...

Learn when and how to use default methods in interfaces. Discover when to declare a static method in an interface. We have seen interfaces so far use abstract methods. Like the Swimmable interface ...

Java Coding Samples. Various Java programs to illustrate various concepts. A Hello World! Java program. Calling Methods. A sample of how to call methods in the same class. For loop. A simple example ...

Jacoco can fail on Java 8 classes, in this particular case one with a default method implementation on an interface: Caused by: java.io.IOException: Error while ...