The following Java statements give an error. What is the correct way to rectify this?byte b = 50; b = b * 2; Group of answer choicesb = byte(b*2);b = int(b*2);b = (int) (b*2);b = (byte) (b*2);
Question
The following Java statements give an error. What is the correct way to rectify this?byte b = 50; b = b * 2; Group of answer choicesb = byte(b2);b = int(b2);b = (int) (b2);b = (byte) (b2);
Solution
The correct way to rectify the error in the Java statements is:
b = (byte) (b*2);
Explanation: In Java, the result of an arithmetic operation between two byte, short, or int values is an int. So, the result of b*2 is an int. However, the variable b is a byte. Java does not automatically convert an int to a byte because an int is larger than a byte and this conversion could result in loss of data. Therefore, you need to explicitly cast the result of the operation to a byte using (byte).
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