如何在java中的类之间传递字符串数组

I'm trying to batch load a csv into neo4j and am having trouble passing the string array from the csv loader class into the database creator class. I'm getting errors both in the csvloader (return type for method is missing & syntax error) with the return statement. In NodeLoader CellInput cannot be resolved when I try to call the method. I think I've been staring at this too long. I'm trying to batch load a csv into neo4j and a