Master Oogways enlighten us about Optional in his previous two sessions, and Now he set the stage for the final advise on Optional and believe me that is the most searchable questions on the internet about Optional, also many peoples mailed in OpenJDK...
Java8:Effective use of Consumer Functional Interface
Java8 provides a functional interface called Consumer, Whose signature looks like following
@FunctionalInterface
public interface Consumer<T> {
void accept(T t);
default Consumer<T> andThen(Consumer<?...
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