JAVASERVER FACES - Introduction to Java Programming: Comprehensive Version - page 1234

F IGURE 33.15

The user enters a guess and the program displays the result.

23
24 public String getResponse() { get response

25 if (guessString == null )

26 return "" ; // No user input yet

27
28 int guess = Integer.parseInt(guessString); check guess

29 if (guess < number)

30 return "Too low" ;

31 else if (guess == number)

32 return "You got it" ;

33 else

34 return "Too high" ;

35 }
36 }

The managed bean uses the @ViewScope annotation (line 7) to set up the view scope for the
bean. The view scope is most appropriate for this project. The bean is alive as long as the view
is not changed. The bean is created when the page is displayed for the first time. A random
number between 0 and 99 is assigned to number (line 13) when the bean is created. This
number will not change as long as the bean is alive in the same view.