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().

Java programs without a graphical user interface use a computer's command line to interact with the user. It is vital that the program's command line output is properly formatted and spaced so ...

The output from running the above is shown next. I demonstrated in this blog post how to use Java’s Package class to access version information about a particular Java package. To demonstrate ...

All of Java's ... This package presents two abstract classes, InputStream and OutputStream. All other stream-oriented I/O classes extend these base classes. To close an input stream and release ...

User input in Java made easy Learn the best ways to handle input from the Java user, and how to format any console output with printf. With pure text Strings, the only flag that makes sense is the ...

To perform user input with the Scanner class, follow these steps: Found in the java.util package, Java’s Scanner class can read input from the command line and return it as a String, BigDecimal or any ...