Scannerとpublic static void main (String args []); の違いって何？ `Scanner`と`public static void main (String [] args)`は、Javaのプログラム内でそれぞれ異なる役割を果たしており、全く異なるものです。 これらの違いを順番に見ていきましょう。

String name = scanner.nextLine(); //nextLine gets the input from the console System.out.println("How old are you? "); int age = scanner.nextInt(); scanner.nextLine ...

This lab was designed to give you practice using the Scanner class to read input from the keyboard, store the input as variables, then write messages to the console based on the input.