In programming, aggregation is a type of object composition where not all the containing objects should be destroyed when the owning object is destroyed .
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In C++, Aggregation is used to represent the ‘HAS-A’ relationship between two objects . It is a type of association. If in a process, one class defines another class as any entity reference then it is known as Aggregation. With the help of aggregation, you can also reuse the class.
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