Learn how to use statements like if, if-else, switch, for, and while to declare variables and specify expressions, make decisions, iterate over statements, and more. Java applications evaluate ...

Looking at your Example Blatz appears to add no value. Just pass a char around (or the Character wrapper whatever that is in java - I hate those wrappers) Having Bar take a function from char to ...

There are only half a dozen classes you really need to master to become competent in the world of functional programming. The java.util.function package contains well over 40 different components, but ...