Microsoft Software Development Engineer In Test (SDET) interview questions

Tell me the methods you use to print all characters in a string?

Microsoft had come to my campus for an information session, where they described about the various opportunities available for students in the field of Computer Science. They mentioned that they are looking people for all three roles namely, SDE, SDET and PM. The following week they had office hours, where students went for a resume critique session. The recruiter, had then asked us to apply online/submit the resume to her. I did the former, and I got an email asking me to attend the interview.