Consider a Java interface InterfaceEx and a method of a class A whose signature is the following: public String proc(InterfaceEx i)

Question

Consider a Java interface InterfaceEx and a method of a class A whose signature is the following:  public String proc(InterfaceEx i)

Answer

It is possible to pass as a parameter of the method proc an object which type (class B) implements the interface InterfaceEx.

Answer

The class A must implement the methods of the InterfaceEx interface

Answer

The InterfaceEx interface must implement the method proc

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