SE450: Horstmann Chapter 1: Reading Input

Construct Scanner from input stream (e.g. System.in)
Scanner in = new Scanner(System.in)
nextInt, nextDouble reads next int or double int n = in.nextInt();
hasNextInt, hasNextDouble test whether next token is a number
next reads next string (delimited by whitespace)
nextLine reads next line

file:horstmann/ch01_input/InputTester.java [source] [doc-public] [doc-private]

package horstmann.ch01_input;
import java.util.Scanner;

public class InputTester
{
  public static void main(String[] args)
  {
    Scanner in = new Scanner(System.in);
    System.out.print("How old are you?");
    int age = in.nextInt();
    age++;
    System.out.println("Next year, you'll be " + age);
    in.close();
  }
}