To implement an interface: use the implements keyword after the class declaration : Interface « Class Definition « Java Tutorial

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Java Tutorial » Class Definition » Interface

5. 29. 3. To implement an interface: use the implements keyword after the class declaration


public class CanonDriver implements Printable {

         public void print (Object obj) {

             // code that does the printing

         }

}

An implementation class has to override all methods in the interface.
A class can implement multiple interfaces.

5. 29. Interface
	5. 29. 1.	Interfaces and Abstract Classes
	5. 29. 2.	Fields and Methods in an Interface
	5. 29. 3.	To implement an interface: use the implements keyword after the class declaration
	5. 29. 4.	A Partial Interface Implementation
	5. 29. 5.	Extending Interfaces
	5. 29. 6.	Interfaces and Multiple Inheritance
	5. 29. 7.	Interfaces and Polymorphism: Using Multiple Interfaces
	5. 29. 8.	Nesting Classes in an Interface Definition
	5. 29. 9.	Encapsulating Constants in a Program
	5. 29. 10.	Multiple interfaces
	5. 29. 11.	Initializing interface fields with non-constant initializers

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