public interface OuterInterface
{
void outerMethod();
public interface NestedInterface
{
void nestedMethod();
}
}
/*
* As you can see in the below example, we are accessing the
* NestedInterface by its OuterInterface because
* it cannot be accessed directly.
*
* It is just like apple inside the box, we cannot access the apple directly
* because we must open the box first.
*
* In collection framework has provided a nested interface
* Entry. Entry is the sub-interface of Map i.e. accessed by Map.Entry.
*/
public class MyClass implements OuterInterface.NestedInterface
{
@Override
public void nestedMethod()
{
System.out.println("Nested Method has been called.");
}
}
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