Java - It's Object Oriented

• Syntax and semantics inherited from C and C++, but many of its object management features come from Objective C (e.g. interfaces).
• Unlike C and C++, there are no stand-alone functions, but only methods associated with a class.
• Everything (except for the built-in primitive types) is either a class, a method, or an object.
• Extensive class library comes with Java, to interface with:
  • host operating system
  • window manager
  • network
• Java Applications and Applets may provide their own class library support
  • May not replace "system" classes (for security purposes)