Which casting is also known as casting down?*
Question
Which casting is also known as casting down?*
Solution
The casting also known as "casting down" is Downcasting. Downcasting is the casting from a general to a more specific type, i.e. casting down the hierarchy. It is used in programming languages such as Java and C++.
Here are the steps to perform downcasting:
- Declare and initialize a parent class object.
- Declare a child class reference but do not create an object of child class.
- Assign the parent class object to the child class reference. This is downcasting.
Please note that downcasting can lead to ClassCastException if the object being casted does not have a is-a relationship with the casted to class.
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