OCA Java SE 8 Programmer I Certification Guide

Figure 6.13. The interface MyInterface extends the interfaces BaseInterface1 and BaseInterface2.

interface BaseInterface1 {
    String getName();
}
interface BaseInterface2 {
    String getName();
}
interface MyInterface extends BaseInterface1, BaseInterface2 {}

Because neither of the getName methods defined in BaseInterface1 and Base-Interface2 define a method body (as shown in figure 6.14), the question of which of the methods MyInterface inherits is irrelevant. The interface MyInterface has access to a single getName method, which must be implemented by all the concrete classes that implement MyInterface.

Figure 6.14. Methods defined in an interface ...