February 2014
Beginner
1248 pages
62h 25m
English
Content preview from Java™ How To Program (Early Objects), Tenth Edition
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10.10.3 Functional Interfaces
As of Java SE 8, any interface containing only one abstract method is known as a functional interface. There are many such interfaces throughout the Java SE 7 APIs, and many new ones in Java SE 8. Some functional interfaces that you’ll use in this book include:
• ActionListener (Chapter 12)—You’ll implement this interface to define a method that’s called when the user clicks a button.
• Comparator (Chapter 16)—You’ll implement this interface to define a method that can compare two objects of a given type to determine whether the first object is less than, equal to or greater than the second.
• Runnable (Chapter 23)—You’ll implement this interface to define a task that may be run in parallel with other parts of your ...
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