For new Java programmers, the JOptionPane class is a great visual and user-friendly introduction to user input and Swing-based programming. Here's how to get started.

Finally, do while loops can be used when you want to run a code block at least once. For example, in many user interface scenarios, it can be useful to tell the user when there is nothing to perform.

Want to know more about standard Java I/O concepts like standard input, standard output, and standard error? Read on!