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.

Instructions: Create a UML diagram for a Dog class. You can get some useful information from your book Review Chapter 5 Pg. 179-180. CLASS NAME List the instance variables in the constructor. Unified Modeling Language (UML) List the methods in the class. o - indicates private o name is the variable name o string is the data type of name CLASS NAME List the instance variables in the constructor. o + indicates public o getName is the method name o o string is the return data type List the methods in the class. The second row of the UML diagram lists the instance variables in the constructor. For example -name: string Java.util. The third row of the diagram lists the methods in the class. For example, +getName(): string empty parenthesie indicate nothing is sent to the method.

Create your own UML diagram — similar to the below UML diagram — for a Pet class that meets thespecification below.1. Create the fields indicated below. Use these names exactly as given for your fields. Define them inexactly this order.• name — The name of the pet, e.g., “Rufus”, “Mittens”, “Smelly”, etc.• animal — The type of pet, e.g., “dog”, “cat”, “asparagus”, etc.• age — The (integer) number of years the pet has been alive, e.g., 1, 2, 3, etc.2. Create a mutator for each of the above in the order listed. Use the standard Java naming conventionfor mutators.3. Create an accessor for each of the above in the order listed. Use the standard Java naming conventionfor accessors

Class Relationships Exercises 1. In Java, we use inheritance for "is-a" relationships. Containment, on the other hand, indicates that one object has another object. These are "has-a" relationships. For the following relationships, determine if they are a "is-a" or a "has-a" relationship: o bicycle - vehicle o car - engine o pizza - topping o food - pizza o dog - mammal 2. Share with someone else 3 other examples for each of the following relationships: o Inheritance ("is-a" relationship) o Containment ("has-a" relationship) 3. public class PersonInfo { protected String firstName; protected String birthdate; } public class ChildInfo extends PersonInfo { private String schoolName; } public class MotherInfo extends PersonInfo { private String spousename; private ChildInfo children1; private ChildInfo children2; private ChildInfo children3; ... } A. Draw the relationships for the classes above using UML. If a class inherits from another class, draw an open arrow pointing to the base class…