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Java

• General Characteristics
  • All data are objects except the primitive types
  • All primitive types have wrapper classes that store one data value
  • All objects are heap-dynamic, accessed through reference variables, and most are allocated with new

• Inheritance
  • Single inheritance only, but there is an abstract class category (interfaces) that provides some of the benefits of multiple inheritance
  • An interface can include only method declarations and named constants (pure abstract class)
  • Methods can be final (cannot be overriden)