Compose a class and, in this class, create two static methods:

1. A method called gallonsToLiters, which takes a single double parameter called gallons and returns a long.

The method should simply return the number of liters (rounded) corresponding to the number of gallons given as the method argument.

The method should return -1 if the gallons argument is less than 0.

2. A main method to demonstrate your gallonsToLiters method. Use the gallon values given below.

3. Compose an additional method called gallonsToLitersDec, which works like the gallonsToLiters method above, but returns a double. The return value should be the number of liters corresponding to the number of gallons given as the method argument, rounded to 3 decimal places.

Note: 1 gallon = 3.785411784 liters.

Sample output:

Gallons Liters Rounded Liters Rounded 3 Decimals
1	4	3.785
5	19	18.927
-2	1	-1.0
12.5	47	47.318
1/3.785411784	1	1.0

Answer rating: 100% (QA)

Heres an example implementation of the class with the required static methods java public class Gall... View the full answer