Non-Primitive Data Types

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Non-Primitive Data Types

The main difference between primitive and non-primitive data types are:

  • Primitive types are predefined (already defined) in Java. Non-primitive types are created by the programmer and is not defined by Java (except for String).
  • Non-primitive types can be used to call methods to perform certain operations, while primitive types cannot.
  • A primitive type has always a value, while non-primitive types can be null.
  • A primitive type starts with a lowercase letter, while non-primitive types starts with an uppercase letter.
  • The size of a primitive type depends on the data type, while non-primitive types have all the same size.

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