The java.util.Scanner class is one of the first components that new Java developers encounter. To use it in your code, you should import it, although another option is to explicitly reference the ...

The java.util.function.Consumer class has one non-default method named accept which takes a single object as its argument and has a void return type. java.util.function.Consumer<T> Consumer function ...

java.lang: A collection of language-related classes, such as Object and String, organized in the java package’s lang subpackage; java.lang.ref: A collection of reference-related language classes ...