ÀνºÅϽº (Instance)

ÀνºÅϽº (Instance)

• ÀνºÅϽº
  • An instance is an object which belongs to a class.
  • All instances of a class have the same set of attributes and methods.
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  • Each instance has a well-defined set of methods.
  • But, the methods are not stored in each object.
  • Methods are stored only once and all objects of a given class share it.
  • The method is part of the class, not part of object.

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• Instantiation in C++
  • int main( ) { Employee Bob, John; Bob.promote(director); Employee* E1; E1 = &Bob; E1->promote(president): ... }