Convert String To Date - Error: "Invalid Date"

I have pulled a date from our database in the form of mm/dd/yyyy, and would like to convert this to a Date object type. To do this, I have parsed the string to switch it to the following format yyyy,mm,dd. I have already created a new Date variable using the following: Date reqDate = new Date(2010,10,14) and had no issues. However, if I do the following: Date reqConvert = new Date (reqDate3) where reqdate3 = 2010,11,15
I get the following error: "Invalid Date".