无法使用getter / setter填充JComboBox

I'm having trouble generating a drop down list using an array string that I populate in the Controller class. The list displays in the GUI but contains no values. Am i using the getter/setter method incorrectly? I've been unable to find an example despite looking at the Oracle documention for JComboBoxes. The api made reference to the setModel method that I presume I'am using incorrectly. Can anyone provide a simple example?I'm having trouble generating a drop down list