When the code implements Java Function with a concise lambda expression runs, the program prints out 25. That’s all you really need to know about the java.util.function.Function interface. It is a ...

Use jshell to experiment. You can easily try out these and other simple expressions using jshell.For example, enter 52 at the jshell> prompt and you’ll receive something like the following ...

Figure 2 shows the results when you compile and execute this Predicate interface tutorial: Java Predicate as an inner class. If you're a developer who prefers inner classes, you could clean this up a ...