title: Good 15 minute Java question to ask recent college graduate
body: <p>When interviewing college coops/interns or recent graduates it helps to have a Java programming question that they can do on a white board in 15 minutes.  Does anyone have examples of good questions like this?  A C++ question I was once asked in an interview was to write a string to integer function which is along the lines of the level of question I am looking for examples of.</p>