B4J Question Question about using third-party software

function max(num1, num2)
   if (num1 >= num2) then
      result = num1;
   else
      result = num2;
   end
   return result;
end

function min(num1, num2)
   if (num1 <= num2) then
      result = num1;
   else
      result = num2;
   end
   return result;
end

    ' calling a sub in a class from lua
    Dim luaFuncCall As JavaObject
    luaFuncCall = se.get_Function("callSub",bindings) ' callSub is in lua script

    Dim luaargs As JavaObject 'ignore
    Dim xtra As luaExtras
    xtra.Initialize
    luaargs = se.createArgs(Array(xtra))

    se.callLua(luaFuncCall,luaargs)

function max(num1, num2)
   if (num1 >= num2) then
      result = num1;
   else
      result = num2;
   end
   return result; 
end

function min(num1, num2)
   if (num1 <= num2) then
      result = num1;
   else
      result = num2;
   end
   return result; 
end

function callSub(clss)
    clss:_testcallfromlua(clss)
    return nil
end

Sub Class_Globals
    Private fx As JFX
End Sub

'Initializes the object. You can add parameters to this method if needed.
Public Sub Initialize
    
End Sub

Sub testCallFromLua()
    Log("I was called from Luaj")
End Sub

    ' set a B4X field in a class from lua
    Dim luaFuncCall As JavaObject
    luaFuncCall = se.get_Function("setB4XVariable",bindings) 'function in lua script see below
' *** the Lua function *** in the file
'    function setB4XVariable(clss)
'    clss._afield = 23
'    Return nil
'    End

    luaargs = se.createArgs(Array(xtra)) ' pass the object
   
    se.callLua(luaFuncCall,luaargs) ' call the function
   
    Log(xtra.aField) ' print what B4X sees (Value was zero before call)

Sub Class_Globals
    Private fx As JFX
    Public aField As Int
End Sub