Method references are a shorthand way to write lambda expressions that call a single method. Rather than implementing a method in a functional interface, a method reference simply points to an ...

A callback operation in Java is one function that is passed to another function and executed after some action is completed. A callback can be executed either synchronously or asynchronously. In the ...

But by declaring my return type as class in this way, I restrict my method to only returning that class (in this example, a List). I might eventually want to rewrite the method to return some other ...