This tutorial is an introduction to socket programming in Java, starting with a simple client-server example demonstrating the basic features of Java I/O. You’ll be introduced to both the ...

Use the Scanner’s next () or nextLine() methods to convert user input into the appropriate type. Use the Java user input in your program. Java Scanner import example Found in the java.util package, ...

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.

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

A Java developer must also be able to think and code using the declarative functional paradigm. This tutorial presents the basics of functional programming.