Learning about lambdas. Lambda expressions, also known as closures, function literals, or simply lambdas, describe a set of features defined in Java Specification Request (JSR) 335.Less formal ...

Like C# lambda expressions, Java 8 lambda expressions tie an argument list to a body. For example, (int x) -> x * x specifies an integer parameter that’s named x and returns the value of x squared.

The functional Predicate interface gets used extensively by the Java 8 Streams API. Any developer who wants to master functional programming in Java will need to be comfortable with the Predicate ...