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() .

showConfirmDialog(); showMessageDialog(); and showOptionDialog(). JOptionPane import and methods. For example, the following Java class uses JOptionPane’s showInputDialog() method to prompt for user ...

Java user input made easy; Learn the easiest ways to handle user input in Java, and format any console output with printf. Top 3 Java user input strategies; How to import the Java Scanner class; A ...

The Java input/output (I/O) ... For example, to open the input stream for a file, we pass the name of the file into a java.io.FileReader object's constructor as follows: ...

Java's Formatter class allows you to format data before it is output. With the Formatter, you can define the maximum width of a value, and the Formatter then automatically pads the value with ...