Run the classic “Hello, World!” Java program. Declare two variables—one for the user’s guess, and one for the secret “magic” number. Use conditional logic to check if the guess matches the magic ...

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

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.