regarding a method definition in a class
user288609
I have a question regarding the class definition in Java. With respect to the following code segment, after the if switch already verifies that h is an instance of Animal, why we still need to add the line of Animal ob = (Animal) h? In addition, why the second coding segment is wrong? I know it should come from the line of public boolean equals (Animal h)
KSFT
Object.equals() takes an object of type Object, so the second example is wrong because it takes an Animal object instead. In the first one, the cast is because the variable has type Object, even though it actually is an instance of the Animal type, so it needs to be cast to be assigned to a variable of type Animal.
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