Consider a class motorboat that represents motorboats. A motorboat has attributes for
• The capacity of the fuel tank
• The amount of fuel in the tank
• The maximum speed of the boat
• The current speed of the boat
• The efficiency of the boat's motor
• The distance traveled
The class has methods to
• Change the speed of the boat
• Operate the boat for an amount of time at the current speed
•Refuel the boat with some amount of fuel
• Return the amount of fuel in the tank
• Return the distance traveled so for
If the boat has efficiency e, the amount of fuel used when traveling at a speed s for time t is e x s2xt. The distance traveled in that time is sxt.
Write a method heading for each method.
Write preconditions and postconditions for each method.
Write some Java statements that test the class.
Implement the class