Question

Find the error in the following definition:

public static int half(double num)
{
double result = num / 2.0;
return result;
}

Answer 1

The error is that the method's declared return type is 'int' but it returns a double value. To correct it, change the return type to 'double' or cast the result to 'int'.

Step-by-step explanation:

The error in the given definition of the method is related to type compatibility in return types. The method is declared with a return type of int, but the actual result being returned is of type double. According to the given method, the variable result holds the half of the input num, which is a double value due to the division operation being performed with a double literal (2.0). To fix this, one must either change the return type of the method to double or cast the result to an int before returning it if the intention is to return a truncated integer value.