Java 8 eliminated this problem by introducing lambdas. This tutorial first introduces the lambda language feature, then provides a more detailed introduction to functional programming with lambda ...

Lambda expressions are new to Java SE 8, and in my opinion they are ... In this example (from an Oracle tutorial) the ActionListener added to the button is defined in an anonymous inner class ...

You can genericize the interface with any valid Java class. When the class is executed, the result is the text string lambda-tutorial.txt written to the console. If you implement the UnaryOperator ...