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 far If the boat has efficiency e, the amount of fuel used when traveling at a speed s for time t is e × s2 × t. The distance traveled in that time is s × t. a. Write a method heading for each method. b. Write preconditions and postconditions for each method. c. Write some Java statements that test the class. d. Implement the class.
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 far
If the boat has efficiency e, the amount of fuel used when traveling
at a speed s for time t is e × s2 × t. The distance traveled in that time
is s × t.
a. Write a method heading for each method.
b. Write preconditions and postconditions for each method.
c. Write some Java statements that test the class.
d. Implement the class.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
