A haulage company that specializes in the transportation of loads throughout the US wishes to create an application to calculate client orders for transportation. Each order describes the load to be transported along with the collection address and the delivery address. The transportation requirements for each order are then calculated. The transport requirements describe the number of units and trailers required to transport the load. One unit can pull one or two trailers and each trailer carries a Maximum of 4,000 kilograms.

Please solution in Java or Javascript is preferable