클래스: MainActivity
인터페이스: ClickListener
변수: mName
메소드: printName()
상수: MAX_NUM
< What >, < Where >, < Description >, < Size >

layouts: what_where
ex) activity_main, view_menu
Strings: where_description
ex) main_title
Drawables: where_description_size
ex) main_userimage
Ids: what where description
ex) tv_menu_title
dimension: what_where_description_size
ex) keyline_all_text