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.

So to learn Java lambda syntax, you need to be familiar with its three component parts: The argument list The arrow The method body To apply these concepts, we first need a functional interface. A ...

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.