انواع کلاس و متغیر در b4a

[ben799 2]

سلام خدا قوت

می خواستم بدونم متغیر از جنس کلاس های زیر به چه معناس و چه کاربردی داره

	Dim a As Bitmap
	Dim a1 As BitmapDrawable
	Dim a2 As Canvas
	Dim a3 As CSBuilder
	Dim a4 As Exception
	Dim a5 As InputStream
	Dim a6 As Intent
	Dim a7 As LayoutValues
	Dim a8 As Map
	Dim a9 As Matcher
	Dim a10 As OutputStream
	Dim a11 As Path
	Dim a12 As Rect
	Dim a13 As RemoteViews
	Dim a14 As ResumableSub
	Dim a15 As StateListDrawable
	Dim a16 As StringBuilder
	Dim a17 As TabHost
	Dim a18 As TextReader
	Dim a19 As TextWriter
	Dim a20 As ToggleButton
	Dim a21 As Void

و همچنین می خواستم بدونم تفاوت بین این سه تا چیه ؟؟

	Dim b As Int
	Public b As Int
	Private b As Int

خیلی ممنون از سایت خوب شما