Learn the best practices for input and output in Java, using streams, readers, writers, scanners, formatters, NIO, and try-with-resources.

In prior Java 101 articles, I referred to the concepts of redirection, standard input device, and standard output device. To demonstrate inputting data, several examples called System.in.read().

A Java Cash-Register App: This is a basic command-line app that takes in details about store goods and their prices, and spits out a final grocery receipt, including sales tax. How to get the app to ...