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 . The distance traveled in that time is . Note: distance = time * speed, fuel used = distance /efficiency. Write a method heading for each method. Write preconditions and post conditions for each method. Write some Java statements that test the class. 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 . The distance traveled in that time is . Note: distance = time * speed, fuel used = distance /efficiency. Write a method heading for each method. Write preconditions and post conditions for each method. Write some Java statements that test the class. Implement the class.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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- 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 . The distance traveled in that time is .
Note: distance = time * speed, fuel used = distance /efficiency.
- Write a method heading for each method.
- Write preconditions and post conditions for each method.
- Write some Java statements that test the class.
- Implement the class.
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