Homework 5-1 Textbook Section 10.7

make a class to represent aFood object. Use the description provided below in UML.

Food

• name : String
• calories : int

• Food(String, int) // The only constructor.Food name and calories must be

// specified

• setName(String) : void // Sets thenameof the Food
• getName() : String // Returns thename of theFood
• setCalories(int) : void // Sets thecalories of theFood
• getCalories() : int // Returns thecalories of theFood
• toString() : String @Override //see Note1:
• equals(Object) : boolean @Override //see Note2:

NOTE1:

toString() method returns a String with the following format:

"Food - name: %10s | calories: %4d"

NOTE2:

Two instances of Food are equal if, and only if, their names are equal and their calories are equal.

Homework 5-2 Textbook Section 10.8

Change thePassenger class fromHomework 4-1, to anabstract class and add the following to it:

Implement theEater Interface.

Passenger // the class becomes anabstract class

• caloriesConsumed: int // this field is initialized to zero and will always increase
• caloriesAccumulator: int // this field is initialized to zero and is an accumulator

// that is reset whenmetabolizeAccumulatedCalories()

// (see below)

• getCaloriesConsumed() : int
• setCaloriesConsumed(int) : void
• getCaloriesAccumulator() : int
• setCaloriesAccumulator(int) : void
• metabolizeAccumulatedCalories() : double // anabstract method that returns adouble

// representing the amount of weight gained.

// Classes that inherit from Passenger will have to implement this method.

// Weight gain is calculated based on the number of accumulated calories

// represented bycaloriesAccumulator.

// Every Passenger uses a different formula for weight gain.

// In addition to returning the amount of weight gained, this method will update

// the Passenger's weight and zero outcaloriesAccumulator.

Change thePerson class fromHomework 4-2, to anabstract class.

Homework 5-3 Textbook Section 10.9

Modify theInfant class fromHomework 4-3 as follows:

• Implement theabstract methodmetabolizeAccumulatedCalories(). Please note thatInfants gain one pound for every 1200 accumulated calories.
• Implement theMover Interface.Infants return"flail arms and legs".

Homework 5-4 Textbook Section 10.10

make a class to represent aTeen object that inherits from (extends) thePerson class. TheTeen class will:

• Implement theabstract methodmetabolizeAccumulatedCalories(). Please note thatTeens gain one pound for every 5000 accumulated calories.
• Implement theMover Interface.Teens return "run fast and jump".

Homework 5-5 Textbook Section 10.11

make a class to represent aElder object that inherits from (extends) thePerson class. TheElder class will:

• Implement theabstract methodmetabolizeAccumulatedCalories(). Please note thatElders gain one pound for every 300 accumulated calories.
• Implement theMover Interface.Elders return "ouch my back wait for me".