JAVA - 从类到列表获取属性

I have a class called "Sprache" and need a attribute "getSprache", who is a get methode. I want to display all "getSprache" to a Jcombobox. I actually have a DefaultComboboxModel. How can I do it? Do I need a list? How looks a loop for the model?I have a class called "Sprache" and need a attr