how can I introduce a string variable in an exported java model?

Who it may correspond,

I have exported my model as a java library and one of my matlab inputs is the path, where the files should be find. Which kind of input java variable should I define to make it work?

If my variable was a number I will do this:

MWNumericArray FM_DC = null; 
FM_DC = new MWNumericArray(1.4,MWClassID.DOUBLE); 
result = modeloMatlab.myModel(1, FM_DC); 

I'm trying to fill the blanks here:

_______1_______ path = ''; 
MWNumericArray FM_DC = null; 
path = new _______1_______('C:\MyFiles',MWClassID.____2____) 
FM_DC = new MWNumericArray(1.4,MWClassID.DOUBLE); 
result = modeloMatlab.myModel(1, path, FM_DC);

Thanks in advance