CAST() Function

use java.util.LinkedHashMap
use java.util.Iterator

rem ' Create and declare my Map
declare LinkedHashMap hm!
hm! = new LinkedHashMap()

rem ' Create three greetings, and insert them into the Map.
declare Greeting greeting!
greeting! = new Hello()
hm!.put(greeting!.getValue(), greeting!)

greeting! = new HowAreYou()
hm!.put(greeting!.getValue(), greeting!)

greeting! = new Goodbye()
hm!.put(greeting!.getValue(), greeting!)

while 1
    rem ' Iterate through all the greetings and print them to the screen
    declare Iterator iter!
    iter! = hm!.values().iterator()
    while (iter!.hasNext())
        rem ' Iterator.next() returns a java.lang.Object, we must cast it
        rem ' to a "Greeting" to assign it to greeting! .
        greeting! = cast(Greeting, iter!.next())
        rem ' Print out the greeting selection.
        print str(greeting!.getValue()) + ": " + greeting!.getGreeting()
    wend

    rem ' Get the user's choice
    input "Choose your greeting: ", choice

    rem ' Obtain the selected greeting from the Map
    rem ' We have to cast() again to obtain the Greeting object from the
    rem ' java.lang.Object returned by LinkedHashMap.get()
    greeting! = cast(Greeting, hm!.get(choice))

    if greeting! = null() then
        rem ' If no greeting with that number, we'll ask them to choose again
        print
        print "ERROR: Invalid choice!"
        print
    else
        rem ' Otherwise, print their chosen greeting
        print
        print "    " + greeting!.getGreeting()
        print

        rem ' Here we downcast to "Goodbye", if this is a Goodbye object.
        rem ' If so, we'll exit
        declare Goodbye goodbye!
        goodbye! = cast(Goodbye, greeting!,err=*endif)
        wait 1
        goodbye!.sayGoodbye()
    endif
wend

rem ' The Base class for all the greetings
class public Greeting
    field public BBjString Greeting$
    field public BBjInt Value%
 
    method protected Greeting(BBjString p_greeting$, BBjInt p_value%)
        #Greeting$ = p_greeting$
        #Value% = p_value%
    methodend
 
    rem ' private no-arg constructor
    method private Greeting()
    methodend
classend

rem ' The Hello greeting is choice #1, with a greeting of "Hello!"
class public Hello EXTENDS Greeting
    method public Hello()
        #super!("Hello!", 1)
    methodend
classend

rem ' The HowAreYou greeting is choice #2, with a greeting of "How are you?"
class public HowAreYou EXTENDS Greeting
    method public HowAreYou()
        #super!("How are you?", 2)
    methodend
classend

rem ' The Goodbye greeting is choice #3, with a greeting of "Goodbye!"
class public Goodbye EXTENDS Greeting
    method public Goodbye()
        #super!("Goodbye!", 3)
    methodend

    method public VOID sayGoodbye()
        release
    methodend
classend

declare int[] intarray!
declare int@[] clientintarray!
declare Integer[] IntegerArray!
declare Integer@[] ClientIntegerArray!

intarray! = new int[10]
temp! = intarray!
intarray! = cast(int[],temp!)

clientintarray! = new int@[10]
temp! = clientintarray!
clientintarray! = cast(int@[],temp!)

IntegerArray! = new Integer[10]
temp! = IntegerArray!
IntegerArray! = cast(Integer[],temp!)
IntegerArray! = cast(java.lang.Integer[],temp!)

ClientIntegerArray! = new Integer@[10]
temp! = ClientIntegerArray!
ClientIntegerArray! = cast(Integer@[],temp!)
ClientIntegerArray! = cast(java.lang.Integer@[],temp!)