VariablesWhat will be the data type of the result of the following operation?(float)a * (int)b / (long)c * (double)dOptionsintdoublelongfloat
Question
Variables
What will be the data type of the result of the following operation?
(float)a * (int)b / (long)c * (double)d
Options
- int
- double
- long
- float
Solution
The data type of the result of the operation will be double.
Here's why:
- The operation involves multiplication and division of variables of different data types: float, int, long, and double.
- In Java, when operations are performed between different data types, the data type of the result is automatically promoted to the data type that can hold more information (to prevent loss of data). This is called type promotion.
- Among float, int, long, and double, double can hold the most information because it has the largest range and can also hold decimal values.
- Therefore, the result of the operation will be promoted to double.
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