Like all OsidLists, GradebookColumnList provides a means for accessing GradebookColumn elements sequentially either one at a time or many at a time. Examples:

                     
                     
                     while (gcl.hasNext()) {
                          GradebookColumn column = gcl.getNextGradebookColumn();
                     }
                     
                                 
                     
                

                     
                     
                     while (gcl.hasNext()) {
                          GradebookColumn[] columns = gcl.getNextGradebookColumns(gcl.available());
                     }