The Scanner class provides an abstraction for input operations by
A) using try and catch statements to catch any IOException instead of throwing the Exception elsewhere
B) parsing input lines into individual tokens
C) performing conversion operations from String to the appropriate type as specified in the Scanner message
D) inputting from the standard input stream if create is called using System.in
E) all of the above

Question

Quizplus · Accepted Answer

E) Input into a Java program is difficult because it requires a lot of overhead. The Scanner class implements all of that overhead so that the programmer does not have to see it. Thus, Scanner is an abstraction for performing input operations without the details. These details include importing java.io classes, handling IOExceptions in some way, inputting from the standard input stream, dividing the input into individual tokens and converting each token as needed into the requesting form.

The Scanner Class Provides an Abstraction for Input Operations by