With a Java lambda expression, the object type isn’t required ... It is a very simple component that simply requires the implementation of one method — named apply — that is passed in a single object, ...

The implementation of Java 8 Lambda expressions required an introduction to a ... that the component extends the Function interface and defines a single method named apply.

The next tutorial in the Java 101 series will introduce method references, which you can combine with lambda expressions to write even more concise, readable Java code.

One of the recurrent, valid criticisms of Java as a programming language is that it is wordy. You have to write a lot of code to get anything done. Lambda expressions relieve that problem for some ...