Can a Byte object be cast to a double value?
-
True
-
False
In Java, you cannot directly cast a wrapper Byte object reference to a primitive double or a Double object reference because they belong to different class hierarchies. Although auto-unboxing allows implicit conversion during assignments, an explicit object reference cast is invalid and will fail compilation.
To answer this question, we need to understand the concept of casting and the data types involved.
In Java, casting is the process of converting a value from one data type to another. However, there are certain restrictions on which types can be cast to each other.
A byte is an 8-bit signed integer data type, while a double is a 64-bit floating-point data type. These two data types are not directly compatible, and casting a Byte object to a double value is not allowed.
Therefore, the correct answer is:
B. False - A Byte object cannot be cast to a double value.