In Java a class can be derived from only one base class. That is, the following declaration is not allowed:
Inheritance among interfaces in java
class C extends A, B // Wrong;Nevertheless, it is possible for a class to extend a base class and to implement one or more interfaces:
{
}
class C extends A
implements D, E
{
}
The derived class c inherits the members of A and it implements all the methods defined in the interfaces D and E.
Inheritance among interfaces in java
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