Core Java اسئلة واجوبة المقابلات
Question: How do you know if an explicit object casting is needed?Answer: If you assign a superclass object to a variable of a subclass's data type, you need to do explicit casting. For example:Object a; Customer b; b = (Customer) a;When you assign a subclass to a variable having a superclass type, the casting is performed automatically. |
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