Question

Identify the false statement.

a. As with integers, you can perform the mathematical operations of addition, subtraction, multiplication, and division with floating-point numbers.
b. Java supports two floating-point data types: float and double. The double data type requires more memory and can hold more significant digits.
c. A floating-point constant, such as 5.6, is a float by default.

Answer 1

The false statement is (c), which incorrectly claims a floating-point constant is a float by default, when in Java, it is actually a double.

Step-by-step explanation:

Among the statements given, the false statement is (c). A floating-point constant, such as 5.6, is actually a double by default in Java, not a float. To specify a float constant, you must append an 'f' or 'F' to the number, for example, 5.6f.

The other statements are true: (a) You can indeed perform addition, subtraction, multiplication, and division with floating-point numbers, just like with integers. (b) Java supports two floating-point data types: float and double. The double data type does require more memory than float and can indeed hold more significant digits, making it more precise for calculations that require a higher level of precision.