... uses interfaces to provide additional functionality, but only supports single inheritance. For information on interfaces, see “Interfaces” on page 249. For information on implementing inheritance, ... more information, see the following topics:•“Creating and organizing classes” on page 100•“Programming classes” on page 102•“Using prefixes in classes” on page 102•“Using comments in classes” ... 157. For more information, see the following topics:•“Naming a variable” on page 44•“Scoping and declaring variables” on page 45•“Using variables in a program” on page 47Naming a variableA...