Simple uses of the Scanner class

Java 5 provides a class called Scanner (in the java.util package).
This can be used for keyboard input.

It allows you to write code like:

0026:       Scanner tScanner = new Scanner(System.in);
0027:       System.out.print("Type in your first number: ");
0028:       double tFirst = tScanner.nextDouble();

Note that you do not have to handle java.io.IOException.