Create a Vehicle class (Activity1.java), include Create 2 properties: make - String, mileage - double; Create 2 constructors: Vehicle(), and Vehicle (String str_make, double m); Create 2 methods: setMileage(double m), getMileage()

14.12 LAB: Nutritional information (classes/constructors) Complete the FoodItem class by adding a constructor to initialize a food item. The constructor should initialize the name (a string) to "Water" and all other instance attributes to 0.0 by default. If the constructor is called with a food name, grams of fat, grams of carbohydrates, and grams of protein, the constructor should assign each instance attribute with the appropriate parameter value. The given program accepts as input a food item name, amount of fat, carbs, and protein, and the number of servings. The program creates a food item using the constructor parameters' default values and a food item using the input values. The program outputs the nutritional information and calories per serving for a food item. Ex: If the input is: Water the output is: Nutritional information per serving of Water: Fat: 0.00 g Carbohydrates: 0.00 g Protein: 0.00 g Number of calories for 1.00 serving (s): 0.00 Ex: If the input is: M&M's 10.0…

A field has access that is somewhere between public and private. static final Opackage Oprotected

Describe how you can use an interface as an alternative to a class to specify the type for a parameter.

class Widget:    """A class representing a simple Widget     === Instance Attributes (the attributes of this class and their types) ===    name: the name of this Widget (str)    cost: the cost of this Widget (int); cost >= 0     === Sample Usage (to help you understand how this class would be used) ===    >>> my_widget = Widget('Puzzle', 15)    >>> my_widget.name    'Puzzle'    >>> my_widget.cost    15    >>> my_widget.is_cheap()    False    >>> your_widget = Widget("Rubik's Cube", 6)    >>> your_widget.name    "Rubik's Cube"    >>> your_widget.cost    6    >>> your_widget.is_cheap()    True    """     # Add your methods here if __name__ == '__main__':    import doctest    # Uncomment the line below if you prefer to test your examples with doctest    # doctest.testmod()

Create a Class called Transaction with: instance variables: stock - your stock class type - char -> b or s (buy/sell) quantity - can be fractional price - buy/sell price when - LocalDate   constructors: constructor with parameters for stock, type and quantity. - sets the price from the stock price instance variable - sets when from LocalDate   getters and setters for each instance variable

Design a Ship class that has the following members:• A field for the name of the ship (a string).• A field for the year that the ship was built (a string).• A constructor and appropriate accessors and mutators.• A toString method that displays the ship's name and the year it was built.Disign a CruiseShip class that extends the Ship class. The CruiseShip class should have thefollowing members:• A field for the maximum number of passengers (an int).• A constructor and appropriate accessors and mutators.• A toString method that overrides the toString method in the base class. The CruiseShipclass's toString method should display only the ship's name and the maximum number ofpassengers.Design a CargoShip class that extends the Ship class. The CargoShip class should have thefollowing members:• A field for the cargo capacity in tonnage (an int).• A constructor and appropriate accessors and mutators.• A toString method that overrides the toString method in the base class. The CargoShipclass's…