My interview was a full day. They brought several college students in and we went through two 2 on 1 interviews as well as a conjoined lunch session where we all got to learn about the company and ask questions. About 1/3 of the interviewees had previously been interns with Macy's. There were a few technical questions, but in my experience there was no actual coding problems. An example of a question I was asked: "Does Java use pass by value or pass by reference with function calls?"