Method references: A primer. My previous Java 101 tutorial introduced lambda expressions, which are used to define anonymous methods that can then be treated as instances of a functional interface.

All Java methods have an argument list and a body, so it should come as no surprise that these two elements are an important part of Java lambda syntax. Furthermore, the Java lambda syntax separates ...

java.util.function.UnaryOperator @FunctionalInterface public interface UnaryOperator<T> extends Function<T,T> T apply(T t) Applies this function to the given argument. Parameter Types: T - the input ...

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.

Developers can use Java 8, introduced last year, and any of the usual Java libraries, along with the AWS SDK for Java. AWS provides two libraries for Lambda, aws-lambda-java-core for function handlers ...